Mars Air Products is one of the largest manufacturers of air curtains in the world. Mars Air Products makes air curtains for every type of setting, including a variety of custom applications. The company offers a wide choice of units diverse locations, such as retail stores and office buildings, restaurants, drive-up windows, hospitals and convalescent homes, concession stands, refrigerated cold storage and clean rooms. The company distributes, services and sells its products on a global scale for all climates and environmental conditions. Mars Air Products was founded in 1962 and is located in Gardena, Calif.