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Airgas Declares Regular Dividend for Second Quarter FY2010

RADNOR, PA – August 18, 2009 -- Airgas, Inc. (NYSE: ARG) today announced that the Board of Directors declared a regular quarterly cash dividend of $0.18 per share, payable September 30, 2009 to shareholders of record as of September 15, 2009.

About Airgas, Inc.

Airgas, Inc. (NYSE: ARG), through its subsidiaries, is the largest U.S. distributor of industrial, medical, and specialty gases, and hardgoods, such as welding equipment and supplies. Airgas is also one of the largest U.S. distributors of safety products, the largest U.S. producer of nitrous oxide and dry ice, the largest liquid carbon dioxide producer in the Southeast, and a leading distributor of process chemicals, refrigerants, and ammonia products. More than 14,000 employees work in over 1,100 locations, including branches, retail stores, gas fill plants, specialty gas labs, production facilities and distribution centers. Airgas also distributes its products and services through eBusiness, catalog and telesales channels. Its national scale and strong local presence offer a competitive edge to its diversified customer base. For more information, please visit www.airgas.com.

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For more information on Airgas, please visit www.airgas.com.

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