    <SEC-DOCUMENT>0001104659-25-033586-index.html : 20250410
    <SEC-HEADER>0001104659-25-033586.hdr.sgml : 20250410
    <ACCEPTANCE-DATETIME>20250410081555
    ACCESSION NUMBER:		0001104659-25-033586
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20241231
    FILED AS OF DATE:		20250410
    DATE AS OF CHANGE:		20250410
    EFFECTIVENESS DATE:		20250410

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CECO ENVIRONMENTAL CORP
    		CENTRAL INDEX KEY:			0000003197
    		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564]
    		ORGANIZATION NAME:           	06 Technology
    		EIN:				132566064
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-07099
    		FILM NUMBER:		25826564

    	BUSINESS ADDRESS:
    		STREET 1:		5080 SPECTRUM DRIVE
    		STREET 2:		SUITE 800E
    		CITY:			ADDISON
    		STATE:			TX
    		ZIP:			75001
    		BUSINESS PHONE:		(513) 458-2600

    	MAIL ADDRESS:
    		STREET 1:		5080 SPECTRUM DRIVE
    		STREET 2:		SUITE 800E
    		CITY:			ADDISON
    		STATE:			TX
    		ZIP:			75001

    	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
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>tm254773d2_ars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: tm254773d2_ars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>