Airgas, Inc., together with its subsidiaries, supplies industrial, medical, and specialty gases; and welding equipment and related products. It operates through two segments, Distribution and All Other Operations. The Distribution segment offers atmospheric gases, including nitrogen, oxygen and argon; helium; hydrogen; welding and fuel gases, such as acetylene, propylene, and propane; carbon dioxide; nitrous oxide; ultra-high purity grades of various gases; special application blends; and process chemicals. This segment also rents gas cylinders, cryogenic liquid containers, bulk storage tanks, tube trailers, and welding-related and other equipment; and provides welding consumables and equipment, safety products, and construction supplies, as well as maintenance, repair, and operating supplies. This segment serves various industries, including manufacturing and metal fabrication; non-residential construction; life sciences and healthcare; food, beverage, and retail; energy and chemical production and distribution; basic materials and services; and government and other industries. The All Other Operations segment produces carbon dioxide, dry ice, and nitrous oxide; distributes refrigerants, and anhydrous and aqua ammonia; and provides technical and refrigerant reclamation services. The company markets its products and services through various sales channels, including branch-based sales representatives, retail stores, strategic customer account programs, telesales, catalogs, e-business, and independent distributors. It has operations in the United States, Canada, Mexico, Russia, Dubai, and various European countries. Airgas, Inc. was founded in 1982 and is based in Radnor, Pennsylvania.