Airgas Receives Two CGA Fleet Safety Awards for Cylinder and Bulk Vehicle Fleets

Cylinder Vehicle Fleet Awarded for the Fourth Consecutive Year

RADNOR, PA – April 29, 2013 – Airgas, Inc. (NYSE: ARG) today announced that it has been awarded two Fleet Safety
Excellence Awards by the Compressed Gas Association (CGA), the U.S. industrial, specialty and medical gas industry’s
standard-setting organization for the promotion of safety standards and safe practices. The first award honored Airgas’ cylinder
vehicle fleet and the second award recognized Airgas’ bulk vehicle fleet.

During a ceremony in Scottsdale, AZ, on behalf of Airgas’ fleet of 5,000 professional drivers, John Anderson, Airgas’ Director of
DOT Operations, accepted the Cylinder Vehicle Fleet award, and Mark Penaherrera, Vice President of Safety Compliance and
Regulatory Affairs for Airgas Merchant Gases, accepted the Bulk Vehicle Fleet award.

The CGA calculates its Fleet Safety awards on a CGA member company’s total vehicle accident frequency rate per million
miles driven during the year. The CGA recognizes one small fleet and one large fleet in each of the Bulk Vehicle and Cylinder
Vehicle categories; Airgas won the large fleet award in both categories.

“We are honored to be recognized by the CGA for having the best safety record among large cylinder gas and bulk fleets,”
said Michael Molinini, Airgas President and CEO. “In 2012, our drivers certainly went the distance – covering more than 128
million miles while safely meeting the needs of our cylinder and bulk gas customers. Safety is of the utmost importance in our
industry and a top priority for Airgas. We’re very proud of our drivers and their dedication to driving and serving our customers

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. Approximately 17,000 associates work in more than 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.

Investor Contact:

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Media Contact:

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