RNS Number:0528E
QuestAir Technologies Inc
05 June 2006


For Immediate Release                                               5 June, 2006

                           QuestAir Technologies Inc.

 QuestAir included in PROFIT 100 ranking of Canada's Fastest-Growing Companies



VANCOUVER, B.C. - QuestAir Technologies Inc. (AIM: QAR; TSX: QAR) announced
today that it has been included in the 18th annual PROFIT 100 ranking of
Canada's Fastest-Growing Companies, published by PROFIT: Your Guide to Business
Success magazine.


Jonathan Wilkinson, QuestAir President and CEO, said this is the second year
that QuestAir has been ranked in the Profit 100 list of fastest growing
companies in Canada. "This award recognizes the hard work and dedication of all
our employees in developing and commercializing our proprietary gas purification
products over the past five years."


Ranking Canada's Fastest-Growing Companies by five-year revenue growth, the
PROFIT 100 profiles the country's most successful growth companies. Published in
the June issue of PROFIT and online at PROFITguide.com, the PROFIT 100 is
Canada's largest annual celebration of entrepreneurial achievement.


                                      -30-


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".


About PROFIT Magazine

PROFIT: Your Guide to Business Success, offers news, strategies, tips,
interviews and other resources to entrepreneurs leading Canada's fastest-growing
companies. Each year PROFIT - which currently reaches more than 373,000 readers
nationally - hosts a number of events that bring together business leaders in
the fast-growth segment and champions the interests of those leaders. PROFIT was
founded in April 1982 as Canada's first national magazine geared to
entrepreneurs. Visit PROFITguide.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.


Contact Information:


QuestAir Technologies Inc.
Andrew Hall
Director, Corporate Development and External Communications
Phone: (001) 604-453-6967
Email: hall@questairinc.com
www.questairinc.com


Canadian media contact:
Terry Foster
James Hoggan & Associates
Phone: (001) 604-739-7500


UK media contact:
Charles Ryland
Ben Willey
Ben Romney
Buchanan Communications
Phone: 020 7466 5000






                      This information is provided by RNS
            The company news service from the London Stock Exchange

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