April 11, 2011
ATI Airtest Technologies Inc.

FOR IMMEDIATE RELEASE

AIRTEST REPORTS RECORD SALES

DELTA, BC, May 4, 2011 -- AirTest this week filed their annual report for the fiscal year ended December 31, 2010 that showed an increase of 53% over the year ended December 31, 2009. The last two quarters of FY 2010 were up 113% from the same period in 2009.

George Graham, President of ATI AirTest Technologies Inc., notes that fiscal year 2011 has started out on a very positive note, with sales for the first 4 months of 2011 up 77% over the same period in 2010.

"The primary reason for our rapid rate of growth is broadening awareness of the significant energy savings generated by carbon dioxide (CO2) demand controlled ventilation systems in commercial and institutional buildings," said Mr. Graham. "Sales of our CO2 sensor technology are robust and show no signs of ebbing."

About AirTest: AirTest Technologies (www.airtest.com) is a Green-Tech company specializing in sensors that improve commercial building operating efficiency and at the same time create energy savings. These sensors are all based on technical innovations developed in the last ten years, and comprise a growing second wave of energy saving technologies that will make a significant contribution to the enabling better control of buildings to ensure energy savings and sustainability. AirTest offers its products to leading-edge building owners, contractors and energy service companies targeting the buildings market. AirTest also provides energy cost reduction solutions to building equipment and controls manufacturers who incorporate AirTest sensor components in their products.

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Statements about the Company's future expectations and all other statements in this press release other than historical facts are "forward looking statements". The Company intends that such forward-looking statements be subject to the safe harbours created thereby. Since these statements involve risks and uncertainties and are subject to change at any time, the Company's actual results may differ materially from the expected results.

For further information, please contact:

Mr. George Graham, President
Phone: (604) 517 3888
Fax: (604) 517 3900
Email: ggraham@airtest.com
Website: www.airtest.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.