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<title>Prepared By R.R. Donnelley Financial -- Form 8-K</title>
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<b>UNITED STATES </b></font></div>

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<b>SECURITIES AND EXCHANGE COMMISSION </b></font></div>

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<b>Washington D.C., 20549 </b></font></div>

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<b>Form 8-K </b></font></div> <div><font Size="1">&nbsp;</font></div>

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<b>Current Report </b></font></div>

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<b>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 </b></font></div>

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<b>Date Of Report (Date Of Earliest Event Reported):&nbsp;&nbsp;07/11/2005 </b></font></div>




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<b>CECO ENVIRONMENTAL CORP </b></font></div>

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<b>(Exact Name of Registrant as Specified in its Charter)</b></font></div>

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<b>Commission File Number:&nbsp;&nbsp;0-7099</b></font></div>

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<div Align="center"><font Face="times New Roman" Size="3" Color="#000000"><b>DE</b></font>
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<b>(State or Other Jurisdiction of</b></font>
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<div Align="center"><font Face="times New Roman" Size="2" Color="#000000"><b>(I.R.S. Employer</b></font>
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<b>Incorporation or Organization)</b></font>
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<b>Identification No.)</b></font>
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<b>3120 Forrer Street, Cincinnati, OH 45209</b></font></div>


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<b>(Address of Principal Executive Offices, Including Zip Code)</b></font>
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<b>(416) 593-6543 </b></font>
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<b>(Registrant&#146;s Telephone Number, Including Area Code) </b></font>
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<b> </b></font>
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<b>(Former name or former address, if changed since last report) </b></font>
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<b>Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:<BR><BR>
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<b>[&nbsp;&nbsp;]&nbsp;&nbsp;
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<BR><BR>

[&nbsp;&nbsp;]&nbsp;&nbsp;
Soliciting material pursuant to Rule 14a-12 under the Exchange Act(17CFR240.14a-12)<BR><BR>


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Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17CFR240.14d-2(b))<BR><BR>


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Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17CFR240.13e-4(c))
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Items to be Included in this Report</b>
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<b>Item 5.02.&nbsp;&nbsp;&nbsp;&nbsp;Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers</b></font>
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On July 11, 2005, Melvin Lazar resigned as a member of the Board of Directors of CECO Environmental Corp. (the "Company"), effective July 11, 2005.&nbsp;&nbsp;&nbsp;Mr. Lazar served as Chairman of the Audit Committee.  The resignation was not a result of a disagreement between the Company and Mr. Lazar. Ronald E. Krieg, who was serving as Vice Chairman of the Audit Committee, will now serve as Chairman of the Audit Committee.</font>
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<b>Signature(s) </b></font>
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Pursuant to the Requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the Undersigned hereunto
duly authorized. </font>
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	CECO ENVIRONMENTAL CORP</font>
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	Date: July 11, 2005.</font>
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	By:</font>
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	/s/&nbsp;&nbsp;&nbsp;&nbsp;Dennis W. Blazer</font>
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	Dennis W. Blazer</font>
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	<div><font Face="times New Roman" Size="2" Color="#000000">Chief Financial Officer and Vice President--Finance and Administration</font>
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Prepared By R.R. Donnelley Financial -- Form 8-K
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington D.C., 20549
Form 8-K
Current Report
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date Of Report (Date Of Earliest Event Reported):  07/11/2005
CECO ENVIRONMENTAL CORP
(Exact Name of Registrant as Specified in its Charter)
Commission File Number:  0-7099
DE
13-2566064
(State or Other Jurisdiction of
(I.R.S. Employer
Incorporation or Organization)
Identification No.)
3120 Forrer Street, Cincinnati, OH 45209
(Address of Principal Executive Offices, Including Zip Code)
(416) 593-6543
(Registrant's Telephone Number, Including Area Code)
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
[  ]  
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[  ]  
Soliciting material pursuant to Rule 14a-12 under the Exchange Act(17CFR240.14a-12)
[  ]  
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17CFR240.14d-2(b))
[  ]  
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17CFR240.13e-4(c))
Items to be Included in this Report
Item 5.02.    Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers
On July 11, 2005, Melvin Lazar resigned as a member of the Board of Directors of CECO Environmental Corp. (the "Company"), effective July 11, 2005.   Mr. Lazar served as Chairman of the Audit Committee.  The resignation was not a result of a disagreement between the Company and Mr. Lazar. Ronald E. Krieg, who was serving as Vice Chairman of the Audit Committee, will now serve as Chairman of the Audit Committee.
Signature(s)
Pursuant to the Requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the Undersigned hereunto
duly authorized.
CECO ENVIRONMENTAL CORP
Date: July 11, 2005.
By:
/s/    Dennis W. Blazer
Dennis W. Blazer
Chief Financial Officer and Vice President--Finance and Administration