<SEC-DOCUMENT>0001193125-19-115615-index.html : 20190424
<SEC-HEADER>0001193125-19-115615.hdr.sgml : 20190424
<ACCEPTANCE-DATETIME>20190424060805
ACCESSION NUMBER:		0001193125-19-115615
CONFORMED SUBMISSION TYPE:	S-3
PUBLIC DOCUMENT COUNT:		9
FILED AS OF DATE:		20190424
DATE AS OF CHANGE:		20190424

FILER:

	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

	FILING VALUES:
		FORM TYPE:		S-3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-231001
		FILM NUMBER:		19762537

	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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<TEXT>
Document 1 - file: d696754ds3.htm

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<SEQUENCE>2
<FILENAME>d696754dex43.htm
<DESCRIPTION>EX-4.3
<TEXT>
Document 2 - file: d696754dex43.htm

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<FILENAME>d696754dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 3 - file: d696754dex51.htm

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<SEQUENCE>4
<FILENAME>d696754dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 4 - file: d696754dex231.htm

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<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>5
<FILENAME>d696754dex241.htm
<DESCRIPTION>EX-24.1
<TEXT>
Document 5 - file: d696754dex241.htm

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<DOCUMENT>
<TYPE>EX-25.1
<SEQUENCE>6
<FILENAME>d696754dex251.htm
<DESCRIPTION>EX-25.1
<TEXT>
Document 6 - file: d696754dex251.htm

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<SEQUENCE>7
<FILENAME>g696754g29k78.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g696754g29k78.jpg

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<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g696754g35o43.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g696754g35o43.jpg

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Document 9 - file: g696754g39w64.jpg

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