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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;11/16/2004 </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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<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  </b></font></div>

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<b>Cincinnati, OH 45209 </b></font>
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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>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 (see General Instruction A.2. below):<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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Marshall J. Morris, Chief Financial Officer and Vice President--Finance and Administration of the Company resigned November 16, 2004, effective November 30, 2004, to pursue other opportunities.  Phillip DeZwirek, Chairman and CEO of the Company and CFO for approximately 10 years prior to Mr. Morris, will assume the responsibilities of CFO until a new CFO is appointed.</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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	&nbsp;&nbsp;&nbsp;&nbsp;CECO ENVIRONMENTAL CORP</font>
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	Date: November 22, 2004.</font>
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	By:</font>
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	/s/&nbsp;&nbsp;&nbsp;&nbsp;Phillip DeZwirek</font>
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	&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Phillip DeZwirek</font>
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	<div Style="margin-left:9%"><font Face="times New Roman" Size="2" Color="#000000">Chief Executive Officer</font>
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<b>Exhibit Index </b></font>
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	<b>Exhibit&nbsp;No.</b></font>
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	<b>Description</b></font>
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	EX-99.1</font>
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	Press Release</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):  11/16/2004
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)
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 (see General Instruction A.2. below):
[  ]  
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
Marshall J. Morris, Chief Financial Officer and Vice President--Finance and Administration of the Company resigned November 16, 2004, effective November 30, 2004, to pursue other opportunities.  Phillip DeZwirek, Chairman and CEO of the Company and CFO for approximately 10 years prior to Mr. Morris, will assume the responsibilities of CFO until a new CFO is appointed.
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: November 22, 2004.
By:
/s/    Phillip DeZwirek
Phillip DeZwirek
Chief Executive Officer
Exhibit Index
Exhibit No.
Description
EX-99.1
Press Release