Air curtains DoorMaster P are designed for indoor installations above or next to the door of industrial buildings with a lot of traffic going in and out of the building. Typical places of installations are industrial buildings, storages, garages, services, car washes, drying houses, fairgrounds, markets etc. The suitability of particular type of air curtain should be consulted with producer or designer. These curtains can be used for doors up to 4,5 m long or they can be connected together to cover larger doors.