RNS Number:7406Z
QuestAir Technologies Inc
14 March 2006


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.

                                      -30-

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".

Contact Information:

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:                                    Canadian media contact:
Charles Ryland                                       Terry Foster
Ben Willey                                           James Hoggan + Associates
Eleanor Williamson                                   Phone: (001) 604-739-7500
Buchanan Communications
Phone: 020 7466 5000




                      This information is provided by RNS
            The company news service from the London Stock Exchange
END

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