Air Seals are made of an inflatable seal that goes around the circumference of a slide-out to offer a superior seal against the elements from the outside.
Air is forced into the seal after the slide-out has been fully extended or retracted. Before the slide-out can be extended or retracted, the air seal is drawn down. The Air Seal is put under pressure or vacuum by its own small air compressor. The slide-out will not work until the panel indicates that the air seal has deflated and it is safe to operate the slide-out without damage to the air seal. The Air Seal will be deflated when the slide-out control button has not been has not been operated for 5 minutes or is switched off.