QAR Questair Tech

    FOR:  QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL:  QAR

May 12, 2008

QuestAir Announces Second Quarter Fiscal 2008 Conference Call

BURNABY, BRITISH COLUMBIA--(Marketwire - May 12, 2008) - QuestAir Technologies Inc.
(TSX:QAR)(AIM:QAR) will hold a conference call to discuss its results for the quarter ended March
31, 2008 on Thursday, May 15, 2008, at 7:00 a.m. PDT (10:00 a.m. EDT, 3:00 p.m. BST).

Access to the call may be obtained by calling the operator at 08082344489 (Toll Free United
Kingdom), 1-866-322-1159 (Toll Free North America), or 1-416-640-3404 (International) 10 minutes
prior to the scheduled start time. The confirmation code for the call is 6844485.

An audio playback version of the call will be available for 7 days after the call at 1-888-203-
1112 (Toll Free North America) or 1-647-436-0148 (International). The replay passcode is 6844485.

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 refueling stations. 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".



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FOR FURTHER INFORMATION PLEASE CONTACT:

QuestAir Technologies Inc.
Sherry Tryssenaar
Chief Financial Officer
(604) 453-6902
Email: tryssenaar@questairinc.com
Website: www.questairinc.com

OR

Buchanan Communications
Charles Ryland
UK Media Contact
+44 (0) 20 7466 5000

OR

Buchanan Communications
Ben Willey
UK Media Contact
+44 (0) 20 7466 5000

OR

Karyo Edelman
Stephen Burega
Canadian Media Contact
(604) 623-3007

OR

Canaccord Adams
Robert Finlay
+44 (0) 207 050 6500

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QuestAir Technologies Inc.



                                                                

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