<SEC-DOCUMENT>0000899243-21-015283.txt : 20210407
<SEC-HEADER>0000899243-21-015283.hdr.sgml : 20210407
<ACCEPTANCE-DATETIME>20210407163025
ACCESSION NUMBER:		0000899243-21-015283
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210405
FILED AS OF DATE:		20210407
DATE AS OF CHANGE:		20210407

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Nuggihalli Ramesh
		CENTRAL INDEX KEY:			0001855199

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-07099
		FILM NUMBER:		21812464

	MAIL ADDRESS:	
		STREET 1:		14651 NORTH DALLAS PARKWAY
		STREET 2:		SUITE 500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75254

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CECO ENVIRONMENTAL CORP
		CENTRAL INDEX KEY:			0000003197
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564]
		IRS NUMBER:				132566064
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		14651 NORTH DALLAS PARKWAY
		STREET 2:		SUITE 500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75254
		BUSINESS PHONE:		(513) 458-2600

	MAIL ADDRESS:	
		STREET 1:		4625 RED BANK ROAD
		STREET 2:		SUITE 200
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45227

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	API ENTERPRISES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALARM PRODUCTS INTERNATIONAL INC
		DATE OF NAME CHANGE:	19851210
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<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-04-05</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000003197</issuerCik>
        <issuerName>CECO ENVIRONMENTAL CORP</issuerName>
        <issuerTradingSymbol>CECE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001855199</rptOwnerCik>
            <rptOwnerName>Nuggihalli Ramesh</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>14651 NORTH DALLAS PARKWAY,</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 500</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75254</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Operating Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Paul M. Gohr, as Attorney-in-Fact for Ramesh Nuggihalli</signatureName>
        <signatureDate>2021-04-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
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<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>attachment1.htm
<DESCRIPTION>EX-24 DOCUMENT
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<PRE>
                               POWER OF ATTORNEY

   KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints Matthew Eckl, Paul M. Gohr and Chasity Henry, and each of them, as the
true and lawful attorney or attorneys-in-fact, with full power of substitution
and revocation, for the undersigned and in the name, place and stead of the
undersigned, in any and all capacities, to execute, on behalf of the
undersigned, (1) any and all notices pursuant to Rule l44 under the Securities
Act of 1933 with respect to sales of shares of common stock, par value $0.01 per
share, or other securities, of CECO Environmental Corp., including, without
limitation, all notices of proposed sale on Form 144, and (2) any and all
statements or reports under Section 16 of the Securities Exchange Act of 1934
with respect to the beneficial ownership of common stock, par value $0.01 per
share, or other securities, of CECO Environmental Corp., including, without
limitation, all initial statements of beneficial ownership on Form 3, all
statements of changes in beneficial ownership on Form 4, all annual statements
of beneficial ownership on Form 5 and all successor or similar forms, to be
filed with the Securities and Exchange Commission, to execute any and all
amendments or supplements to any such notices, statements or reports, and to
file the same, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission, granting to said
attorney or attorneys-in-fact, and each of them, full power and authority to do
so and perform each and every act and thing requisite and necessary to be done
in and about the premises (including, without limitation, completing, executing,
delivering and filing a Form ID to apply for electronic filing codes), as fully
and to all intents and purposes as the undersigned might or could do in person,
and hereby ratifying and confirming all that said attorney or attorneys-in-
fact, or any of them, or their substitute or substitutes, may lawfully do or
cause to be done by virtue hereof. The undersigned acknowledges that the
foregoing attorneys-in-fact, and each of them, in serving in such capacity at
the request of the undersigned, are not assuming any of the responsibilities of
the undersigned to comply with Section 16 of the Securities Exchange Act of 1934
or any other legal requirement. This Power of Attorney shall remain in effect
until revoked in writing by the undersigned.



/s/ Ramesh Nuggihalli
--------------------------------------------
Name:  Ramesh Nuggihalli

Date: March 30, 2021



</PRE>
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