Fiscal 2007 Year End Conference Call

FOR: QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL: QAR

December 6, 2007

QuestAir Announces Fiscal 2007 Year End Conference Call

BURNABY, BRITISH COLUMBIA--(Marketwire - Dec. 6, 2007) - QuestAir Technologies Inc. (TSX:QAR)(AIM:QAR) will
hold a conference call to discuss its results for the fiscal year ended September 30, 2007 on Thursday,
December 13, 2007, at 7:00 a.m. PST (10:00 a.m. EST, 3:00 p.m. BST).

Access to the call may be obtained by calling the operator at 1-866-321-6651 (Toll Free North America), or 1-
416-642-5212 (International) 10 minutes prior to the scheduled start time.

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 7456723.

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

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

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

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

Canaccord Adams
Robert Finlay
+44 207 050 6500

Canaccord Adams
Erin Needra
+44 207 050 6500

QuestAir Technologies Inc.

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