QuestAir Technologies Inc.: Notification of Shareholding

FOR: QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL: QAR

March 3, 2008

BURNABY, BRITISH COLUMBIA--(Marketwire - March 3, 2008) - QuestAir Technologies Inc. ("QuestAir" or the
"Company") (TSX:QAR)(AIM:QAR) announces that on February 28, 2008, it received notification that as of close of
business on February 26, 2008, UBS Global Asset Management no longer has a notifiable interest in the Company.

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".

-30-

FOR FURTHER INFORMATION PLEASE CONTACT:

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

Canaccord Adams
Robert Finlay
+44 207 050 6500

Canaccord Adams
Clayton Bush
+44 207 050 6500

QuestAir Technologies Inc.

Questair Tech (LSE:QAR)
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