L'Air Liquide is a global leader in industrial and medical gas production, with 95.5% of sales from gases like oxygen, nitrogen, and hydrogen. The company serves various markets, including industrial (75.1%), healthcare (15.5%), and electronics (9.4%), while its geographical sales are led by the United States (32.3%) and Europe (25.9%). Additionally, it engages in engineering and construction of gas production plants, contributing to 4.5% of its sales.