Airgas, Inc. is a supplier of industrial, medical and specialty gases, and hard goods, such as welding equipment and related products. The Company is also a producer of atmospheric gases, carbon dioxide, dry ice and nitrous oxide and a supplier of safety products, refrigerants, ammonia products and process chemicals. It operates through two segments: Distribution and All Other Operations. The Distribution segment offers a portfolio of related gas and hard goods products and services to the end customers. The All Other Operations segment consists of five business units which manufacture or distribute carbon dioxide, dry ice, nitrous oxide, ammonia and refrigerant gases. It also offers supply chain management services and solutions, and product and process technical support across many customer segments. It markets its products and services through multiple sales channels, including branch-based sales representatives, retail stores and strategic customer account programs, among others.