Airgas Increases First Quarter Dividend by 9%

Airgas, Inc. (NYSE: ARG), one of the nation’s leading suppliers of industrial, medical, and specialty gases, and related products, today announced that its Board of Directors has increased the quarterly cash dividend on the Company’s common stock by 9%, from $0.55 per share to $0.60 per share. The dividend will be payable on June 30, 2015 to shareholders of record as of June 15, 2015.

“Our strong cash flow and liquidity position allow us to increase dividends and execute our strategic plans. We’ve grown our dividend at a compounded annual rate of 27% since its inception in fiscal 2004 through fiscal 2015,” said Airgas Executive Chairman Peter McCausland. “This announced dividend action reflects our confidence in the strength of the Airgas organization and the long term fundamentals of our business.”

About Airgas, Inc.

Airgas, Inc. (NYSE: ARG), through its subsidiaries, is one of the nation’s leading suppliers of industrial, medical and specialty gases, and hardgoods, such as welding equipment and related products. Airgas is a leading U.S. producer of atmospheric gases with 16 air separation plants, a leading producer of carbon dioxide, dry ice, and nitrous oxide, one of the largest U.S. suppliers of safety products, and a leading U.S. supplier of refrigerants, ammonia products, and process chemicals. More than 16,000 associates work in approximately 1,100 locations, including branches, retail stores, gas fill plants, specialty gas labs, production facilities and distribution centers. Airgas also markets its products and services through e-Business, 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.

Airgas, Inc.Investor Contact:Joseph Marczely, [e-mail] Contact:Sarah Boxler, [e-mail]