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 <P>&nbsp;</P>
 </TD>
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 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=RIGHT><FONT SIZE=2>Registration No. 333-______</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>As filed with the Securities and Exchange Commission on November 19,
 2010</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
<HR style="MARGIN-TOP: -5px" color=#000000 noShade SIZE=4>
<HR style="MARGIN-TOP: -10px" color=#000000 noShade SIZE=1>
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 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>UNITED STATES</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>SECURITIES AND EXCHANGE COMMISSION</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>Washington, D.C. 20549</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=3><B>FORM&nbsp;S-8</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>REGISTRATION STATEMENT UNDER THE</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>SECURITIES ACT OF 1933</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=3><B>DONALDSON
 COMPANY, INC.</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>(Exact name of registrant as specified in its charter)</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>Delaware</B></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>41-0222640</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>(State or other jurisdiction</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>(I.R.S. Employer</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>of incorporation or organization)</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>Identification No.)</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>1400 West 94th Street</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>Minneapolis, Minnesota 55431</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>(Address
 of principal executive
 offices,</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>including
 zip code)</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>DONALDSON COMPANY, INC. 2010 MASTER STOCK
 INCENTIVE PLAN</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>(Full title of the plan)</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>Norman C. Linnell</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>Vice President, General Counsel and
 Secretary</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>Donaldson Company, Inc.</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>1400 West 94th Street</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B>Minneapolis, Minnesota 55431</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2><B> (952) 887-3131</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>(Name, address and telephone number,</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=3 VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>including area code, of agent for service)</FONT></P>
 </TD>
 </TR>
</TABLE>

<P><FONT SIZE=2>Indicate by check mark
whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of
&#147;large accelerated filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148;
in Rule&nbsp;12b-2 of the Exchange Act.</FONT></P>

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 <TD WIDTH="55%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="45%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Large accelerated
 filer&nbsp;&nbsp;<FONT FACE=WINGDINGS>x</FONT></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Accelerated
 filer&nbsp;&nbsp;<FONT FACE=WINGDINGS>o</FONT></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Non-accelerated
 filer&nbsp;&nbsp;<FONT FACE=WINGDINGS>o</FONT></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Smaller reporting
 company&nbsp;&nbsp;<FONT FACE=WINGDINGS>o</FONT></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(Do not check if a smaller
 reporting company)</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
</TABLE>
<BR>
<div ALIGN=CENTER><FONT SIZE=2><B>CALCULATION OF REGISTRATION FEE</B></FONT></div>

<TABLE BORDER=1 CELLSPACING=0 CELLPADDING=0 WIDTH="100%" STYLE='MARGIN-LEFT:-.15PT;BORDER-COLLAPSE:COLLAPSE;BORDER:NONE'>
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="1%" VALIGN=TOP STYLE='BORDER-TOP:SOLID BLACK 1px;BORDER-LEFT:SOLID BLACK 1px;BORDER-BOTTOM:NONE;BORDER-RIGHT:NONE'>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="30%" VALIGN=TOP STYLE='BORDER-TOP:SOLID BLACK 1px;BORDER-LEFT:NONE;BORDER-BOTTOM:NONE;BORDER-RIGHT:SOLID BLACK 1px'>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="18%" VALIGN=TOP STYLE='BORDER-TOP:SOLID BLACK 1px;BORDER-LEFT:NONE;BORDER-BOTTOM:NONE;BORDER-RIGHT:SOLID BLACK 1px'>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="17%" VALIGN=TOP STYLE='BORDER-TOP:SOLID BLACK 1px;BORDER-LEFT:NONE;BORDER-BOTTOM:NONE;BORDER-RIGHT:SOLID BLACK 1px'>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="19%" VALIGN=TOP STYLE='BORDER-TOP:SOLID BLACK 1px;BORDER-LEFT:NONE;BORDER-BOTTOM:NONE;BORDER-RIGHT:SOLID BLACK 1px'>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="15%" VALIGN=TOP STYLE='BORDER-TOP:SOLID BLACK 1px;BORDER-LEFT:NONE;BORDER-BOTTOM:NONE;BORDER-RIGHT:SOLID BLACK 1px'>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER-TOP:NONE;BORDER-LEFT:SOLID BLACK 1px;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:NONE'>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P><FONT SIZE=2><B>Title of securities to be registered</B></FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P ALIGN=CENTER><FONT SIZE=2><B>Amount<BR>
 to be registered(1)</B></FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P ALIGN=CENTER><FONT SIZE=2><B>Proposed maximum<BR>
 offering price per share(2)</B></FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P ALIGN=CENTER><FONT SIZE=2><B>Proposed maximum<BR>
 aggregate offering price(2)</B></FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P ALIGN=CENTER><FONT SIZE=2><B>Amount of <BR>
 registration fee</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER-TOP:NONE;BORDER-LEFT:SOLID BLACK 1px;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:NONE'>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P><FONT SIZE=2>Common
 Stock, $5.00 par value per share (3)</FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P ALIGN=CENTER><FONT SIZE=2>4,600,000
 shares</FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P ALIGN=CENTER><FONT SIZE=2>$49.91</FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P ALIGN=CENTER><FONT SIZE=2>$229,586,000</FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER-TOP:NONE;BORDER-LEFT:  NONE;BORDER-BOTTOM:SOLID BLACK 1px;BORDER-RIGHT:SOLID BLACK 1px'>
 <P ALIGN=CENTER><FONT SIZE=2>$16,370</FONT></P>
 </TD>
 </TR>
</TABLE>

<BR>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="5%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="95%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(1)</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Represents
 shares of common stock of Donaldson Company,&nbsp;Inc. issuable under the
 Donaldson Company, Inc. 2010 Master Stock Incentive Plan. Pursuant to
 Rule&nbsp;416 under the Securities Act of 1933, as amended, this registration
 statement also covers any additional shares of Donaldson Company, Inc. common
 stock that may be granted under the Plan to prevent dilution resulting from
 stock splits, stock dividends or similar transactions.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(2)</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Estimated
 solely for the purpose of calculating the registration fee in accordance with
 Rules 457(h)(1) and (c) under the Securities Act of 1933, as amended, based
 on the average of the high and low sales prices of Donaldson Company, Inc.
 common stock as reported on the New York Stock Exchange on
 November&nbsp;16,&nbsp;2010.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(3)</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Includes
 corresponding rights to acquire shares of Donaldson Company, Inc. preferred
 stock pursuant to the Preferred Stock Amended and Restated Rights Agreement
 between Donaldson Company, Inc. and Wells Fargo Bank, N.A., dated as of
 January 27, 2006, or any successor rights agreement of Donaldson Company,
 Inc. </FONT></P>
 </TD>
 </TR>
</TABLE>

<BR>
<HR style="MARGIN-TOP: -2px" color=#000000 noShade SIZE=1>
<HR style="MARGIN-TOP: -10px" color=#000000 noShade SIZE=4>

<P STYLE='PAGE-BREAK-BEFORE: ALWAYS'></P><PAGE>
<P ALIGN=CENTER><FONT SIZE=2><B>PART II</B></FONT></P>

<P ALIGN=CENTER><FONT SIZE=2><B>INFORMATION REQUIRED IN THE REGISTRATION
STATEMENT</B></FONT></P>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="12%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="88%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Item 3.</B></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Incorporation of Documents by Reference.</B></FONT></P>
 </TD>
 </TR>
</TABLE>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
following documents, which have been filed with the Securities and Exchange
Commission (the &#147;SEC&#148;) by Donaldson Company, Inc. (&#147;we,&#148; &#147;us,&#148; &#147;our&#148; or
&#147;Donaldson&#148;), are incorporated by reference in this registration statement:</FONT></P>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="95%" style="margin-left:5%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="5%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="95%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(a)</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Our Annual
 Report on Form 10-K for the year ended July&nbsp;31, 2010; and</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(b)</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>The
 description of our common stock and preferred stock purchase rights contained
 in any registration statement or report filed by us under the Securities
 Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;), including any
 amendment or report filed for the purpose of updating such description.</FONT></P>
 </TD>
 </TR>
</TABLE>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All
documents filed by us pursuant to Sections&nbsp;13(a), 13(c), 14 and 15(d) of
the Exchange Act subsequent to the date hereof, and prior to the filing of a
post-effective amendment which indicates that all securities offered hereby
have been sold or which deregisters all securities remaining unsold, shall be
deemed to be incorporated by reference herein and to be a part hereof from the
respective dates of the filing of such documents.</FONT></P>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="12%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="88%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Item 4.</B></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Description of Securities.</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=2 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
 applicable.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Item 5.</B></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Interests of Named Experts and Counsel.</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=2 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
 applicable.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Item 6.</B></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Indemnification of Directors and Officers.</B></FONT></P>
 </TD>
 </TR>
</TABLE>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section
145 of the Delaware General Corporation Law (&#147;DGCL&#148;), as amended, provides
that, under certain circumstances, a corporation may indemnify any person who
was or is a party or is threatened to be made a party to any threatened,
pending or completed action, suit or proceeding, whether civil, criminal,
administrative or investigative (other than an action by or in the right of the
corporation) by reason of the fact that the person is or was a director,
officer, employee or agent of the corporation, or is or was serving at its
request in such capacity in another corporation, partnership, joint venture,
trust or other enterprise, against expenses (including attorneys&#146; fees),
judgments, fines and amounts paid in settlement actually and reasonably
incurred by the person in connection with such action, suit or proceeding if
the person acted in good faith and in a manner the person reasonably believed
to be in or not opposed to the best interests of the corporation, and, with
respect to any criminal action or proceeding, had no reasonable cause to
believe the person&#146;s conduct was unlawful. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Fourteenth Article of our Restated Certificate of Incorporation provides that
no director will be personally liable to Donaldson or its stockholders for
monetary damage for breach of fiduciary duty as a director, except for
liability (1)&nbsp;for any breach of the director&#146;s duty of loyalty to
Donaldson or its stockholders, (2)&nbsp;for acts or omissions not in good faith
or which involve intentional misconduct or a knowing violation of law,
(3)&nbsp;under the DGCL provision making directors personally liable for
unlawful payment of dividends or unlawful stock repurchases or redemptions, or
(4)&nbsp;for any transaction from which the director derived an improper
personal benefit.</FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Bylaw
26 of our Amended and Restated Bylaws provides that our officers and directors
will be indemnified and held harmless by Donaldson to the fullest extent
permitted under the DGCL.</FONT></P>

<P ALIGN=CENTER><FONT SIZE=2>II-1</FONT></P>

<HR NOSHADE ALIGN=CENTER WIDTH="100%" SIZE=3><P STYLE='PAGE-BREAK-BEFORE: ALWAYS'></P><PAGE>
<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
maintain directors&#146; and officers&#146; liability insurance which covers certain
liabilities and expenses of our officers and directors and covers Donaldson for
reimbursement of payments to directors and officers in respect of such
liabilities and expenses.</FONT></P>


<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="12%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="88%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Item 7.</B></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Exemption from Registration Claimed.</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=2 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not
 applicable.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Item 8.</B></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Exhibits.</B></FONT></P>
 </TD>
 </TR>
</TABLE>

<BR>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="8%" VALIGN=TOP>
 <P ALIGN=CENTER>&nbsp;</P>
 </TD>
 <TD WIDTH="92%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.1</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Restated
 Certificate of Incorporation of Donaldson Company, Inc. (incorporated by
 reference to Exhibit&nbsp;3-A to Donaldson Company, Inc.&#146;s Annual Report on
 Form 10-K for the year ended July&nbsp;31,&nbsp;2010).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.2</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Certificate
 of Designation, Preferences and Rights of Series A Junior Participating
 Preferred Stock of Donaldson Company, Inc., dated as of March 3, 2006
 (incorporated by reference to Exhibit 3-B to Donaldson Company, Inc.&#146;s
 Quarterly Report on Form 10-Q for the quarter ended October&nbsp;31,&nbsp;2006).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.3</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Amended and
 Restated Bylaws of Donaldson Company, Inc. (as of January 30, 2009)
 (incorporated by reference to Exhibit 3-C to Donaldson Company, Inc.&#146;s
 Quarterly Report on Form 10-Q for the quarter ended January 31, 2009).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.4</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Preferred
 Stock Amended and Restated Rights Agreement between Donaldson Company, Inc.
 and Wells Fargo Bank, N.A., as Rights Agent, dated as of January 27, 2006
 (incorporated by reference to Exhibit 4.1 to Donaldson Company, Inc.&#146;s
 Current Report on Form 8-K filed on February 1, 2006).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.5</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Donaldson
 Company, Inc. 2010 Master Stock Incentive Plan (effective November 19, 2010).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>5.1</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Opinion of
 Dorsey &amp; Whitney LLP.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>23.1</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Consent of
 Dorsey &amp; Whitney LLP (included in Exhibit 5.1).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>23.2</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Consent of
 Independent Registered Public Accounting Firm, PricewaterhouseCoopers LLP.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>24.1</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Power of
 Attorney.</FONT></P>
 </TD>
 </TR>
</TABLE>

<P ALIGN=CENTER><FONT SIZE=2>II-2</FONT></P>

<HR NOSHADE ALIGN=CENTER WIDTH="100%" SIZE=3><P STYLE='PAGE-BREAK-BEFORE: ALWAYS'></P><PAGE>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="10%" VALIGN=BOTTOM>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="90%" VALIGN=BOTTOM>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=BOTTOM>
 <P><FONT SIZE=2><B>Item 9.</B></FONT></P>
 </TD>
 <TD VALIGN=BOTTOM>
 <P><FONT SIZE=2><B>Undertakings.</B></FONT></P>
 </TD>
 </TR>
</TABLE>

<BR>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="5%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="5%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="5%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="5%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="80%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(a)</FONT></P>
 </TD>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=2>The
 undersigned registrant hereby undertakes:</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=4 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
 file, during any period in which offers or sales are being made, a
 post-effective amendment to this registration statement:</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
 include any prospectus required by Section&nbsp;10(a)(3) of the Securities
 Act of 1933, as amended (the &#147;Securities Act&#148;);</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
 reflect in the prospectus any facts or events arising after the effective
 date of the registration statement (or the most recent post-effective
 amendment thereof) which, individually or in the aggregate, represent a
 fundamental change in the information set forth in the registration
 statement. Notwithstanding the foregoing, any increase or decrease in the
 volume of securities offered (if the total dollar value of securities offered
 would not exceed that which was registered) and any deviation from the low or
 high end of the estimated maximum offering range may be reflected in the form
 of prospectus filed with the SEC pursuant to Rule&nbsp;424(b) if, in the
 aggregate, the changes in volume and price represent no more than a 20%
 change in the maximum aggregate offering price set forth in the &#147;Calculation
 of Registration Fee&#148; table in the effective registration statement; and</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 (iii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To include any material
 information with respect to the plan of distribution not previously disclosed
 in the registration statement or any material change to such information in
 the registration statement;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=3 VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=4 VALIGN=TOP>
 <P><FONT SIZE=2><I>provided</I>, <I>however,</I>
 that paragraphs&nbsp;(a)(1)(i) and (a)(1)(ii) above do not apply if the
 information required to be included in a post-effective amendment by those
 paragraphs is contained in reports filed with or furnished to the SEC by the
 registrant pursuant to Section&nbsp;13 or Section&nbsp;15(d) of the Exchange
 Act that are incorporated by reference in the registration statement.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=4 VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=4 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;That,
 for the purpose of determining any liability under the Securities Act, each such
 post-effective amendment shall be deemed to be a new registration statement
 relating to the securities offered therein, and the offering of such
 securities at that time shall be deemed to be the initial bona fide offering
 thereof.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=4 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
 remove from registration by means of a post-effective amendment any of the
 securities being registered which remain unsold at the termination of the
 offering.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=4 VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=5 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
 undersigned registrant hereby undertakes that, for purposes of determining
 any liability under the Securities Act, each filing of the registrant&#146;s
 annual report pursuant to Section&nbsp;13(a) or Section&nbsp;15(d) of the
 Exchange Act that is incorporated by reference in the registration statement
 shall be deemed to be a new registration statement relating to the securities
 offered therein, and the offering of such securities at that time shall be
 deemed to be the initial bona fide offering thereof.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=5 VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD COLSPAN=5 VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Insofar
 as indemnification for liabilities arising under the Securities Act may be
 permitted to directors, officers and controlling persons of the registrant
 pursuant to the foregoing provisions, or otherwise, the registrant has been
 advised that in the opinion of the SEC such indemnification is against public
 policy as expressed in the Securities Act and is, therefore, unenforceable.
 In the event that a claim for indemnification against such liabilities (other
 than the payment by the registrant of expenses incurred or paid by a
 director, officer or controlling person of the registrant in the successful
 defense of any action, suit or proceeding) is asserted by such director,
 officer or controlling person in connection with the securities being
 registered, the registrant will, unless in the opinion of its counsel the
 matter has been settled by controlling precedent, submit to a court of
 appropriate jurisdiction the question whether such indemnification by it is
 against public policy as expressed in the Securities Act and will be governed
 by the final adjudication of such issue.</FONT></P>
 </TD>
 </TR>
</TABLE>
<P ALIGN=CENTER><FONT SIZE=2>II-3</FONT></P>

<HR NOSHADE ALIGN=CENTER WIDTH="100%" SIZE=3><P STYLE='PAGE-BREAK-BEFORE: ALWAYS'></P><PAGE>
<P ALIGN=CENTER><FONT SIZE=2><B>SIGNATURES</B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, the registrant certifies
that it has reasonable grounds to believe that it meets all of the requirements
for filing on Form&nbsp;S-8 and has duly caused this registration statement to
be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of Minneapolis, State of Minnesota, on November 19, 2010.</FONT></P>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="48%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="4%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="48%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD COLSPAN=2 VALIGN=TOP>
 <P><FONT SIZE=2>DONALDSON
 COMPANY, INC.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>By:</FONT></P>
 </TD>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:SOLID BLACK .5PT'>
 <P><FONT SIZE=2>/s/ William
 M. Cook</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>William M.
 Cook</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Chief
 Executive Officer</FONT></P>
 </TD>
 </TR>
</TABLE>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, this registration statement
has been signed by the following persons in the capacities indicated on
November 19, 2010.</FONT></P>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="47%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="9%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="42%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Signature</B></FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2><B>Title</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P><FONT SIZE=2>/s/ William
 M. Cook</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>President,
 Chief Executive Officer and Chairman</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>William M.
 Cook</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(principal
 executive officer)</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P><FONT SIZE=2>/s/ Thomas
 R. VerHage</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Vice
 President and Chief Financial Officer</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Thomas R.
 VerHage</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(principal
 financial officer)</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P><FONT SIZE=2>/s/ James F.
 Shaw</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Controller</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>James F.
 Shaw</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>(principal
 accounting officer)</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>

 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>F. Guillaume
 Bastiaens</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Janet M.
 Dolan</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Jack W.
 Eugster</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>John F.
 Grundhofer</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Michael J.
 Hoffman</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Paul David
 Miller</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
</TABLE>
<P ALIGN=CENTER><FONT SIZE=2>II-4</FONT></P>

<HR NOSHADE ALIGN=CENTER WIDTH="100%" SIZE=3><P STYLE='PAGE-BREAK-BEFORE: ALWAYS'></P><PAGE>



<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="47%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="9%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="42%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Jeffrey
 Noddle</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Willard D.
 Oberton</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Ajita G.
 Rajendra</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2>*</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Director</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>John P.
 Wiehoff</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>&nbsp;</FONT></P>
 </TD>
 </TR>
</TABLE>

<BR>



<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="7%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="41%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="52%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>*By:</FONT></P>
 </TD>
 <TD VALIGN=TOP STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P><FONT SIZE=2>/s/ Norman
 C. Linnell</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=2>Norman C.
 Linnell</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Attorney-in-Fact</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
</TABLE>
<P ALIGN=CENTER><FONT SIZE=2>II-5</FONT></P>

<HR NOSHADE ALIGN=CENTER WIDTH="100%" SIZE=3><P STYLE='PAGE-BREAK-BEFORE: ALWAYS'></P><PAGE>
<P ALIGN=CENTER><FONT SIZE=2><B>EXHIBIT INDEX</B></FONT></P>

<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH="100%">
 <TR STYLE="FONT-SIZE:1PX">
 <TD WIDTH="10%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="3%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 <TD WIDTH="86%" VALIGN=TOP>
 <P>&nbsp;</P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=BOTTOM STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2><B>Exhibit<BR>
 Number</B></FONT></P>
 </TD>
 <TD VALIGN=BOTTOM>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=BOTTOM STYLE='BORDER:NONE;BORDER-BOTTOM:  SOLID BLACK .5PT'>
 <P ALIGN=CENTER><FONT SIZE=2><B>Description</B></FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP STYLE='BORDER:NONE'>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.1</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Restated
 Certificate of Incorporation of Donaldson Company, Inc. (incorporated by
 reference to Exhibit&nbsp;3-A to Donaldson Company, Inc.&#146;s Annual Report on
 Form 10-K for the year ended July&nbsp;31,&nbsp;2010).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.2</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Certificate
 of Designation, Preferences and Rights of Series A Junior Participating
 Preferred Stock of Donaldson Company, Inc., dated as of March 3, 2006
 (incorporated by reference to Exhibit 3-B to Donaldson Company, Inc.&#146;s
 Quarterly Report on Form 10-Q for the quarter ended
 October&nbsp;31,&nbsp;2006).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.3</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Amended and
 Restated Bylaws of Donaldson Company, Inc. (as of January 30, 2009)
 (incorporated by reference to Exhibit 3-C to Donaldson Company, Inc.&#146;s
 Quarterly Report on Form 10-Q for the quarter ended January 31, 2009).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.4</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Preferred
 Stock Amended and Restated Rights Agreement between Donaldson Company, Inc.
 and Wells Fargo Bank, N.A., as Rights Agent, dated as of January 27, 2006
 (incorporated by reference to Exhibit 4.1 to Donaldson Company, Inc.&#146;s
 Current Report on Form 8-K filed on February 1, 2006).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>4.5</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Donaldson
 Company, Inc. 2010 Master Stock Incentive Plan (effective November 19, 2010).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>5.1</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Opinion of
 Dorsey &amp; Whitney LLP.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>23.1</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Consent of
 Dorsey &amp; Whitney LLP (included in Exhibit 5.1).</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>23.2</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Consent of
 Independent Registered Public Accounting Firm, PricewaterhouseCoopers LLP.</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 </TR>
 <TR>
 <TD VALIGN=TOP>
 <P ALIGN=CENTER><FONT SIZE=2>24.1</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=1>&nbsp;</FONT></P>
 </TD>
 <TD VALIGN=TOP>
 <P><FONT SIZE=2>Power of
 Attorney.</FONT></P>
 </TD>
 </TR>
</TABLE>

<BR>

<HR NOSHADE ALIGN=CENTER WIDTH="100%" SIZE=3>

</BODY>
</HTML>
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{"company-data": {"conformed-name": "DONALDSON CO INC", "cik": "0000029644", "assigned-sic": "3564", "irs-number": "410222640", "state-of-incorporation": "DE", "fiscal-year-end": "0731"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-170729", "film-number": "101206085"}, "business-address": {"street1": "1400 W. 94TH ST.", "city": "MINNEAPOLIS", "state": "MN", "zip": "55431", "phone": "6128873131"}, "mail-address": {"street1": "1400 W 94TH STREET", "city": "MINNEAPOLIS", "state": "MN", "zip": "55431"}}
Registration No. 333-______
As filed with the Securities and Exchange Commission on November 19,
 2010
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT UNDER THE
SECURITIES ACT OF 1933
DONALDSON
 COMPANY, INC.
(Exact name of registrant as specified in its charter)
Delaware
41-0222640
(State or other jurisdiction
(I.R.S. Employer
of incorporation or organization)
Identification No.)
1400 West 94th Street
Minneapolis, Minnesota 55431
(Address
 of principal executive
 offices,
including
 zip code)
DONALDSON COMPANY, INC. 2010 MASTER STOCK
 INCENTIVE PLAN
(Full title of the plan)
Norman C. Linnell
Vice President, General Counsel and
 Secretary
Donaldson Company, Inc.
1400 West 94th Street
Minneapolis, Minnesota 55431
(952) 887-3131
(Name, address and telephone number,
including area code, of agent for service)
Indicate by check mark
whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of
"large accelerated filer," "accelerated filer" and "smaller reporting company"
in Rule 12b-2 of the Exchange Act.
Large accelerated
 filer
x
Accelerated
 filer
o
Non-accelerated
 filer
o
Smaller reporting
 company
o
(Do not check if a smaller
 reporting company)
CALCULATION OF REGISTRATION FEE
Title of securities to be registered
Amount
to be registered(1)
Proposed maximum
offering price per share(2)
Proposed maximum
aggregate offering price(2)
Amount of
registration fee
Common
 Stock, $5.00 par value per share (3)
4,600,000
 shares
$49.91
$229,586,000
$16,370
(1)
Represents
 shares of common stock of Donaldson Company, Inc. issuable under the
 Donaldson Company, Inc. 2010 Master Stock Incentive Plan. Pursuant to
 Rule 416 under the Securities Act of 1933, as amended, this registration
 statement also covers any additional shares of Donaldson Company, Inc. common
 stock that may be granted under the Plan to prevent dilution resulting from
 stock splits, stock dividends or similar transactions.
(2)
Estimated
 solely for the purpose of calculating the registration fee in accordance with
 Rules 457(h)(1) and (c) under the Securities Act of 1933, as amended, based
 on the average of the high and low sales prices of Donaldson Company, Inc.
 common stock as reported on the New York Stock Exchange on
 November 16, 2010.
(3)
Includes
 corresponding rights to acquire shares of Donaldson Company, Inc. preferred
 stock pursuant to the Preferred Stock Amended and Restated Rights Agreement
 between Donaldson Company, Inc. and Wells Fargo Bank, N.A., dated as of
 January 27, 2006, or any successor rights agreement of Donaldson Company,
 Inc.
PART II
INFORMATION REQUIRED IN THE REGISTRATION
STATEMENT
Item 3.
Incorporation of Documents by Reference.
The
following documents, which have been filed with the Securities and Exchange
Commission (the "SEC") by Donaldson Company, Inc. ("we," "us," "our" or
"Donaldson"), are incorporated by reference in this registration statement:
(a)
Our Annual
 Report on Form 10-K for the year ended July 31, 2010; and
(b)
The
 description of our common stock and preferred stock purchase rights contained
 in any registration statement or report filed by us under the Securities
 Exchange Act of 1934, as amended (the "Exchange Act"), including any
 amendment or report filed for the purpose of updating such description.
All
documents filed by us pursuant to Sections 13(a), 13(c), 14 and 15(d) of
the Exchange Act subsequent to the date hereof, and prior to the filing of a
post-effective amendment which indicates that all securities offered hereby
have been sold or which deregisters all securities remaining unsold, shall be
deemed to be incorporated by reference herein and to be a part hereof from the
respective dates of the filing of such documents.
Item 4.
Description of Securities.
Not
 applicable.
Item 5.
Interests of Named Experts and Counsel.
Not
 applicable.
Item 6.
Indemnification of Directors and Officers.
Section
145 of the Delaware General Corporation Law ("DGCL"), as amended, provides
that, under certain circumstances, a corporation may indemnify any person who
was or is a party or is threatened to be made a party to any threatened,
pending or completed action, suit or proceeding, whether civil, criminal,
administrative or investigative (other than an action by or in the right of the
corporation) by reason of the fact that the person is or was a director,
officer, employee or agent of the corporation, or is or was serving at its
request in such capacity in another corporation, partnership, joint venture,
trust or other enterprise, against expenses (including attorneys' fees),
judgments, fines and amounts paid in settlement actually and reasonably
incurred by the person in connection with such action, suit or proceeding if
the person acted in good faith and in a manner the person reasonably believed
to be in or not opposed to the best interests of the corporation, and, with
respect to any criminal action or proceeding, had no reasonable cause to
believe the person's conduct was unlawful.
The
Fourteenth Article of our Restated Certificate of Incorporation provides that
no director will be personally liable to Donaldson or its stockholders for
monetary damage for breach of fiduciary duty as a director, except for
liability (1) for any breach of the director's duty of loyalty to
Donaldson or its stockholders, (2) for acts or omissions not in good faith
or which involve intentional misconduct or a knowing violation of law,
(3) under the DGCL provision making directors personally liable for
unlawful payment of dividends or unlawful stock repurchases or redemptions, or
(4) for any transaction from which the director derived an improper
personal benefit.
Bylaw
26 of our Amended and Restated Bylaws provides that our officers and directors
will be indemnified and held harmless by Donaldson to the fullest extent
permitted under the DGCL.
II-1
We
maintain directors' and officers' liability insurance which covers certain
liabilities and expenses of our officers and directors and covers Donaldson for
reimbursement of payments to directors and officers in respect of such
liabilities and expenses.
Item 7.
Exemption from Registration Claimed.
Not
 applicable.
Item 8.
Exhibits.
4.1
Restated
 Certificate of Incorporation of Donaldson Company, Inc. (incorporated by
 reference to Exhibit 3-A to Donaldson Company, Inc.'s Annual Report on
 Form 10-K for the year ended July 31, 2010).
4.2
Certificate
 of Designation, Preferences and Rights of Series A Junior Participating
 Preferred Stock of Donaldson Company, Inc., dated as of March 3, 2006
 (incorporated by reference to Exhibit 3-B to Donaldson Company, Inc.'s
 Quarterly Report on Form 10-Q for the quarter ended October 31, 2006).
4.3
Amended and
 Restated Bylaws of Donaldson Company, Inc. (as of January 30, 2009)
 (incorporated by reference to Exhibit 3-C to Donaldson Company, Inc.'s
 Quarterly Report on Form 10-Q for the quarter ended January 31, 2009).
4.4
Preferred
 Stock Amended and Restated Rights Agreement between Donaldson Company, Inc.
 and Wells Fargo Bank, N.A., as Rights Agent, dated as of January 27, 2006
 (incorporated by reference to Exhibit 4.1 to Donaldson Company, Inc.'s
 Current Report on Form 8-K filed on February 1, 2006).
4.5
Donaldson
 Company, Inc. 2010 Master Stock Incentive Plan (effective November 19, 2010).
5.1
Opinion of
 Dorsey & Whitney LLP.
23.1
Consent of
 Dorsey & Whitney LLP (included in Exhibit 5.1).
23.2
Consent of
 Independent Registered Public Accounting Firm, PricewaterhouseCoopers LLP.
24.1
Power of
 Attorney.
II-2
Item 9.
Undertakings.
(a)
The
 undersigned registrant hereby undertakes:
(1)          To
 file, during any period in which offers or sales are being made, a
 post-effective amendment to this registration statement:
(i)           To
 include any prospectus required by Section 10(a)(3) of the Securities
 Act of 1933, as amended (the "Securities Act");
(ii)          To
 reflect in the prospectus any facts or events arising after the effective
 date of the registration statement (or the most recent post-effective
 amendment thereof) which, individually or in the aggregate, represent a
 fundamental change in the information set forth in the registration
 statement. Notwithstanding the foregoing, any increase or decrease in the
 volume of securities offered (if the total dollar value of securities offered
 would not exceed that which was registered) and any deviation from the low or
 high end of the estimated maximum offering range may be reflected in the form
 of prospectus filed with the SEC pursuant to Rule 424(b) if, in the
 aggregate, the changes in volume and price represent no more than a 20%
 change in the maximum aggregate offering price set forth in the "Calculation
 of Registration Fee" table in the effective registration statement; and
(iii)        To include any material
 information with respect to the plan of distribution not previously disclosed
 in the registration statement or any material change to such information in
 the registration statement;
provided
,
however,
that paragraphs (a)(1)(i) and (a)(1)(ii) above do not apply if the
 information required to be included in a post-effective amendment by those
 paragraphs is contained in reports filed with or furnished to the SEC by the
 registrant pursuant to Section 13 or Section 15(d) of the Exchange
 Act that are incorporated by reference in the registration statement.
(2)          That,
 for the purpose of determining any liability under the Securities Act, each such
 post-effective amendment shall be deemed to be a new registration statement
 relating to the securities offered therein, and the offering of such
 securities at that time shall be deemed to be the initial bona fide offering
 thereof.
(3)          To
 remove from registration by means of a post-effective amendment any of the
 securities being registered which remain unsold at the termination of the
 offering.
(b)     The
 undersigned registrant hereby undertakes that, for purposes of determining
 any liability under the Securities Act, each filing of the registrant's
 annual report pursuant to Section 13(a) or Section 15(d) of the
 Exchange Act that is incorporated by reference in the registration statement
 shall be deemed to be a new registration statement relating to the securities
 offered therein, and the offering of such securities at that time shall be
 deemed to be the initial bona fide offering thereof.
(c)     Insofar
 as indemnification for liabilities arising under the Securities Act may be
 permitted to directors, officers and controlling persons of the registrant
 pursuant to the foregoing provisions, or otherwise, the registrant has been
 advised that in the opinion of the SEC such indemnification is against public
 policy as expressed in the Securities Act and is, therefore, unenforceable.
 In the event that a claim for indemnification against such liabilities (other
 than the payment by the registrant of expenses incurred or paid by a
 director, officer or controlling person of the registrant in the successful
 defense of any action, suit or proceeding) is asserted by such director,
 officer or controlling person in connection with the securities being
 registered, the registrant will, unless in the opinion of its counsel the
 matter has been settled by controlling precedent, submit to a court of
 appropriate jurisdiction the question whether such indemnification by it is
 against public policy as expressed in the Securities Act and will be governed
 by the final adjudication of such issue.
II-3
SIGNATURES
Pursuant
to the requirements of the Securities Act of 1933, the registrant certifies
that it has reasonable grounds to believe that it meets all of the requirements
for filing on Form S-8 and has duly caused this registration statement to
be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of Minneapolis, State of Minnesota, on November 19, 2010.
DONALDSON
 COMPANY, INC.
By:
/s/ William
 M. Cook
William M.
 Cook
Chief
 Executive Officer
Pursuant
to the requirements of the Securities Act of 1933, this registration statement
has been signed by the following persons in the capacities indicated on
November 19, 2010.
Signature
Title
/s/ William
 M. Cook
President,
 Chief Executive Officer and Chairman
William M.
 Cook
(principal
 executive officer)
/s/ Thomas
 R. VerHage
Vice
 President and Chief Financial Officer
Thomas R.
 VerHage
(principal
 financial officer)
/s/ James F.
 Shaw
Controller
James F.
 Shaw
(principal
 accounting officer)
*
Director
F. Guillaume
 Bastiaens
*
Director
Janet M.
 Dolan
*
Director
Jack W.
 Eugster
*
Director
John F.
 Grundhofer
*
Director
Michael J.
 Hoffman
*
Director
Paul David
 Miller
II-4
*
Director
Jeffrey
 Noddle
*
Director
Willard D.
 Oberton
*
Director
Ajita G.
 Rajendra
*
Director
John P.
 Wiehoff
*By:
/s/ Norman
 C. Linnell
Norman C.
 Linnell
Attorney-in-Fact
II-5
EXHIBIT INDEX
Exhibit
Number
Description
4.1
Restated
 Certificate of Incorporation of Donaldson Company, Inc. (incorporated by
 reference to Exhibit 3-A to Donaldson Company, Inc.'s Annual Report on
 Form 10-K for the year ended July 31, 2010).
4.2
Certificate
 of Designation, Preferences and Rights of Series A Junior Participating
 Preferred Stock of Donaldson Company, Inc., dated as of March 3, 2006
 (incorporated by reference to Exhibit 3-B to Donaldson Company, Inc.'s
 Quarterly Report on Form 10-Q for the quarter ended
 October 31, 2006).
4.3
Amended and
 Restated Bylaws of Donaldson Company, Inc. (as of January 30, 2009)
 (incorporated by reference to Exhibit 3-C to Donaldson Company, Inc.'s
 Quarterly Report on Form 10-Q for the quarter ended January 31, 2009).
4.4
Preferred
 Stock Amended and Restated Rights Agreement between Donaldson Company, Inc.
 and Wells Fargo Bank, N.A., as Rights Agent, dated as of January 27, 2006
 (incorporated by reference to Exhibit 4.1 to Donaldson Company, Inc.'s
 Current Report on Form 8-K filed on February 1, 2006).
4.5
Donaldson
 Company, Inc. 2010 Master Stock Incentive Plan (effective November 19, 2010).
5.1
Opinion of
 Dorsey & Whitney LLP.
23.1
Consent of
 Dorsey & Whitney LLP (included in Exhibit 5.1).
23.2
Consent of
 Independent Registered Public Accounting Firm, PricewaterhouseCoopers LLP.
24.1
Power of
 Attorney.