Airgas Offers Four Free Technical Seminars at PITTCON 2007.

Technical Experts and Division Leadership Available for Customer/Media Questions

RADNOR, Pa. -- Airgas, Inc. (NYSE:ARG), the largest U.S. distributor of specialty gases and equipment, announced plans for the 2007 Pittsburgh Conference (PITTCON) to be held in Chicago from February 25-March 2, 2007. Four technical seminars will be held Monday, February 26 through Wednesday, February 28 at McCormick Place, Seminar Room 42, near the Airgas Exhibit (Booth # 3865).

The technical seminars being offered will provide participants with a greater understanding of consistent performance in the analytical laboratory through the following presentations:

Setting Up a Process Gas Stream

Lee Polite, President of Axion, Inc., and Sherri Pertee, Airgas' Market Development Manager, will address the challenges of setting up new laboratory systems and how to overcome these challenges using Airgas' new technology in gases and equipment, notably BIP([R]) Technology, SIP([TM]) purifiers, and SIR([TM]) regulators. This session will be held Monday and Tuesday, 10:00 a.m. - 10:45 a.m.

Gas Delivery Systems for Nanotechnology

Gary Dyal, Manager of Marketing / Sales for CVD Equipment, and Frank Kandl, Equipment Marketing Manager for Airgas, will provide valuable information for selecting safe, modular, and cost-effective R&D systems designed for Nanotechnology research utilizing flammable, pyrophoric, and toxic gases and chemicals. This session will be held Monday, Tuesday and Wednesday, 11:00 a.m. - 11:45 a.m.

Carrier Gas Selection, Helium vs. Hydrogen

Len Sidisky, R & D Manager in Supelco's Gas Separations Business Unit, and Frank Kandl, Airgas' Equipment Marketing Manager, will compare the performance and effects of nitrogen, helium, and hydrogen on the speed of analysis, selectivity, resolution, sensitivity, and safety of use. This session will be held Monday, Tuesday, and Wednesday, 1:00 p.m. - 1:45 p.m.

Use of BIP([R]) Helium on a Pulse Discharge Detector

Mike King, Chromatography Technology Manager for PAC, LP, and Sherri Pertee, Airgas' Market Development Manager, will discuss the results of a recent study examining the difference in the capability of laboratory instrumentation when using higher purity carrier gas. This session will be held Wednesday, 10:00 a.m. - 10:45 a.m.

"PITTCON gives customers and prospective customers the opportunity to meet some of the most skilled and forward-thinking people in our industry," said Jim Muller, Airgas' recently appointed Senior Vice President of Specialty Gases and Life Science. "Airgas, as the industry leader in specialty gases, is pleased to make its technical experts available to customers. This open communication can help foster proper gas and equipment selection to ensure consistent performance in the analytical laboratory."

Additional information on the Technical Seminars, as well as on Airgas' specialty gas product, service, and equipment offerings, will be available at Airgas booth #3865.

About Airgas, Inc.

Airgas, Inc. (NYSE:ARG) is the largest U.S. distributor of specialty, medical and industrial gases, welding, safety and related products. More than 11,000 associates work in more than 900 locations nationwide, 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.