QuestAir H-3200 Hydrogen Purifier Installed at SunLine Transit Hydrogen Station

FOR: QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL: QAR

August 25, 2006

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Aug. 25, 2006) - QuestAir Technologies Inc. (TSX:QAR)(AIM:QAR)
announced today that one of its H-3200 hydrogen purifiers has been successfully installed at a hydrogen fueling
station operated by SunLine Transit Agency ("SunLine Transit" or "SunLine") in Thousand Palms, California.

QuestAir's H-3200 is incorporated into a commercial on-site hydrogen generator supplied by HyRadix Inc., a
Chicago-based company and a leading provider of on-site hydrogen generation systems and supply solutions.
HyRadix's commercial Adeo(TM) hydrogen fuel generator replaces a prototype Adeo(TM) system that has operated at
the SunLine Transit hydrogen station since 2004. The new hydrogen generator provides hydrogen fuel for
SunLine's current hydrogen-powered vehicles, as well as supporting SunLine's plans for future expansion of its
hydrogen bus fleet.

Jonathan Wilkinson, President and CEO of QuestAir said that QuestAir has had a long association with the
SunLine Transit hydrogen station, having supplied a hydrogen purifier to an earlier hydrogen generator
installed at the station in 1998.

"We are extremely pleased with the successful start-up of the H-3200 as part of HyRadix's Adeo(TM) hydrogen
generator. The system performance has fully met expectations since installation, producing high purity hydrogen
that meets the demanding purity specifications of the major fuel cell vehicle manufacturers."

The H-3200 unit was supplied under the terms of a supply agreement with HyRadix announced in June 2005.

About QuestAir H-3200

QuestAir's H-3200 purifies hydrogen-containing gas streams to high purity hydrogen for use in industrial
processes, on-site hydrogen plants and hydrogen fueling stations. The H-3200's optimized Pressure Swing
Adsorption ("PSA") process and proprietary rotary valve technology deliver higher efficiency than conventional
PSA systems in a more compact, cost effective package. Since the product launch in 2003, QuestAir has sold more
than 30 H-3200 systems to customers in Europe, Japan and North America.

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".

About HyRadix

HyRadix is the leader in providing proven, on-site hydrogen generation systems and supply solutions. Based in
Chicago, HyRadix serves the global market by providing dependable hydrogen solutions for industrial and
consumer manufacturing processes and transportation refueling applications. Through its proprietary technology,
HyRadix is meeting the rapidly growing global demand for lower-cost hydrogen. For more information, visit
www.HyRadix.com.

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.
Andrew Hall
Director, Corporate Development
(604) 453-6967
hall@questairinc.com
www.questairinc.com

Buchanan Communications - UK media contact
Charles Ryland
+44 (0) 20 7466 5000

Buchanan Communications - UK media contact
Ben Willey
+44 (0) 20 7466 5000

James Hoggan & Associates - Canadian media contact
Terry Foster
(604) 739-7500

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QuestAir Technologies Inc.

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