QuestAir Announces Completion of Testing for Refinery Hydrogen Purifier

    FOR:  QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL:  QAR

April 14, 2008

QuestAir Announces Completion of Testing for Refinery Hydrogen Purifier

VANCOUVER, BRITISH COLUMBIA--(Marketwire - April 14, 2008) - QuestAir Technologies Inc. ("QuestAir" or
"The Company") (TSX:QAR)(AIM:QAR) announced today that testing of the prototype H-6200 hydrogen
purifier at an ExxonMobil affiliate refinery in France was successfully completed in March. The H-6200
hydrogen purifier has been operating under test since late October 2007 and has performed well under a
range of conditions. The unit has now been placed in commercial use. Coincident with completion of the
prototype test, QuestAir and ExxonMobil Research and Engineering Company ("EMRE") are progressing
marketing efforts to commercially deploy the technology more broadly.

Commenting on the prototype test, Jonathan Wilkinson, President and CEO of QuestAir, stated, "The
successful completion of the testing of the H-6200 hydrogen purifier demonstrates the robustness of
the rapid cycle technology. We believe that the H-6200 will provide refinery customers with
significant benefits compared to conventional pressure swing adsorption, and we will be actively
working with EMRE to commercialize this product."

QuestAir has been working with EMRE since 2003 to develop a large capacity rapid cycle pressure swing
adsorption system, marketed as the H-6200, for use in oil refineries and petrochemical plants. This
product is anticipated to offer advantages relative to other hydrogen recovery options including lower
total erected costs, superior recovery performance, and improved operability.

About the QuestAir H-6200

The H-6200 hydrogen purifier incorporates QuestAir's proprietary Rapid-Cycle Pressure Swing Adsorption
(RCPSA) technology, which operates at significantly higher cycle speeds than the conventional pressure
swing adsorption systems. This results in a direct reduction in the size and cost of the equipment
required to purify a given volume of product gas. The H-6200 will be marketed in the oil refining
industry as a compact solution for hydrogen recovery, helping refineries address the growing demand
for hydrogen.

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
[phone]
Email: [e-mail]
Website: www.questairinc.com

OR

Buchanan Communications
Charles Ryland
UK Media Contact
[phone]

OR

Buchanan Communications
Ben Willey
UK Media Contact
[phone]

OR

Karyo Edelman
Stephen Burega
Canadian Media Contact
[phone] or Cell: [phone]

OR

Canaccord Adams
Robert Finlay
[phone]


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QuestAir Technologies Inc.