Airgas, Inc. (NYSE: ARG) Senior Vice President and Chief Financial Officer Robert M. McLaughlin will present at Baird’s 2012 Industrial Conference in Chicago on Wednesday, November 7, at 7:40 a.m. CT (8:40 a.m. ET). Interested parties may listen to a live webcast or replay until December 6 by accessing http://investor.shareholder.com/arg/events.cfm. Presentation slides will be available for download by 8:00 a.m. ET on November 7 in the Investor Information section of the Company’s website at http://investor.shareholder.com/arg/slides.cfm. 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 15,000 employees 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 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.