FOR:  QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL:  QAR

March 5, 2008

QuestAir Announces Director Purchases under Employee Share Purchase Plan

VANCOUVER, BRITISH COLUMBIA--(Marketwire - March 5, 2008) - QuestAir Technologies Inc. (TSX:QAR)(AIM:QAR)
announced today that two executive Directors have purchased common shares under the company's Employee Share
Purchase Plan ("Plan"). The Plan was approved by the Board of Directors in February, 2007 in order to encourage
employees to invest in the common shares of the company. Purchases under the Plan are made on behalf of
participants by the Plan's independent administrator on the Toronto Stock Exchange at regular quarterly
intervals.

Two executive Directors, Jonathan Wilkinson, President and Chief Executive Officer, and Sherry Tryssenaar,
Chief Financial Officer, elected to participate in the Plan when it was established. Under the Plan, Mr.
Wilkinson and Ms. Tryssenaar purchased shares on February 29, 2008 at an average price of CAD$0.29.

- Mr. Wilkinson purchased 12,118 shares bringing his total holdings to 143,194 common shares representing 0.27%
of the total shares outstanding.

- Ms. Tryssenaar purchased 7,830 shares bringing her total holdings to 36,448 common shares representing 0.07%
of the total shares outstanding.

Disclosure of the Directors dealings under this Plan 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 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".

Forward Looking Statements

Certain statements in this press release may constitute "forward-looking" statements which involve known and
unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements
of the Company, or industry results, to be materially different from any future results, performance or
achievements expressed or implied by such forward-looking statements. When used in this press release, such
statements use such words as "anticipate", "believe", "plan", "estimate", "expect", "intend", "may", "will" and
other similar terminology. These statements reflect current expectations regarding future events and operating
performance and speak only as of the date of this press release. Forward-looking statements involve significant
risks and uncertainties, should not be read as guarantees of future performance or results, and will not
necessarily be accurate indications of whether or not such results will be achieved. A number of factors could
cause actual results to differ materially from the results discussed in the forward-looking statements.



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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

Canaccord Adams
Robert Finlay
+44 207 050 6500

OR

Canaccord Adams
Clayton Bush
+44 207 050 6500

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 Communications
Stephen Burega
Canadian Media Contact
(604) 623-3007

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QuestAir Technologies Inc.



                                                                

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