For Immediate Release 14 March, 2006

QuestAir announces shareholder dealings

BURNABY, B.C. – QuestAir Technologies Inc. (AIM: QAR; TSX: QAR) has been
notified that one of its early venture capital investors has sold a portion of its holding in QuestAir in trades made on 23 February 2006 and 27 February 2006.

Working Opportunity Fund (EVCC) Ltd (“Working Opportunity Fund”) sold a total 1,032,000 common shares an average price of $1.03 per common share. Working Opportunity Fund’s remaining holding is 2,177,162 common shares, representing 5.8% of QuestAir’s undiluted share capital. Working Opportunity Fund made its first equity investment in QuestAir in 1998.

This announcement is made pursuant to the rules governing the operation of AIM as established by the London Stock Exchange Plc.

About QuestAir Technologies Inc.
QuestAir Technologies, Inc. is a developer and supplier of proprietary gas purification systems for several large international markets, including existing markets such as oil refining, biogas production and natural gas processing, and emerging markets such as fuel cell power plants and fuel cell vehicle refuelling stations. The Company has joint development agreements with Exxon Mobil Research and Engineering Company and Shell Hydrogen, and a collaboration with FuelCell Energy. QuestAir is based in Burnaby, British Columbia and its shares trade on the AIM Market of the London Stock Exchange Plc. and on the Toronto Stock Exchange under the symbol “QAR”.

For further information, please contact:

QuestAir Technologies Inc.
Andrew Hall
Director, Corporate Development and External Communications
Phone: (001) 604-453-6967
Email: hall@questairinc.com
Web: www.questairinc.com

UK media contact:
Charles Ryland
Ben Willey
Eleanor Williamson
Buchanan Communications
Phone: 020 7466 5000

Canadian media contact:
Terry Foster
James Hoggan & Associates
Phone: (001) 604-739-7500


 

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