AIRGAS USA, LLC - is one of the nation's leading suppliers of industrial, medical and specialty gases, and hard goods, 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. We have more than 17,000 associates working in approximately 1,100 locations nationwide.  Airgas is a company of hard-working men and women dedicated to helping our customers succeed. When a challenge arises, we provide the right solutions, leveraging our many years of industry process expertise and our extensive gases, welding, and safety products offering.