CECO ENVIRONMENTAL RECEIVES SIGNIFCANT ORDER

NEW YORK, November 4, 2004 - CECO Environmental Corp. (NASDAQ: CECE) reported today that its CECO Abatement division has received an order in excess of $800,000 from a major corporation for the retrofit of a Regenerative Thermal Oxidizer (RTO) located in the Eastern United States.

Robert Cloud, General Manager of CECO Abatement stated, "the purpose of the retrofit is to dramatically improve the operational efficiency of the existing RTO thereby increasing the thermal efficiency of the system as well as reducing the fuel and electrical power requirements, which should result in a rapid return on investment for our client."

Richard Blum, CECO President and COO said, "having CECO Abatement add to all the recent activity at the various CECO divisions reinforces our belief that our vertically-integrated menu of air pollution solutions from concept to installation is being well received by our customers."

ABOUT CECO ENVIRONMENTAL

CECO Environmental Corp. is North America's largest independent air pollution control company. Through its six subsidiaries -- Busch, CECOaire, CECO Filters, CECO Abatement Systems, kbd/Technic and Kirk & Blum - CECO provides a wide spectrum of air quality services and products including: industrial air filters, environmental maintenance, monitoring and management services, and air quality improvements systems. CECO is a full-service provider to the steel, military, aluminum, automotive, aerospace, semiconductor, chemical, cement, metalworking, glass, foundry and virtually all-industrial process industries.

For more information on CECO Environmental Corp., please visit the company's web site at www.cecoenviro.com.

Contact: Corporate Information
Phillip DeZwirek, CECO Environmental Corp.
http://www.cecoenviro.com
1-800-606-CECO

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All forward-looking statements are subject to certain risks, uncertainties and assumptions. These risks and uncertainties, which are more fully described in CECO's Annual and Quarterly Reports filed with the Securities and Exchange Commission, include changes in market conditions in the industries in which the Company operates. Should one or more of these risks or uncertainties materialize, or should the assumptions prove incorrect, actual results may vary in material aspects from those currently anticipated.