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Air curtains
The air curtains are HVAC devices that separate the indoor and outdoor environment by means of an optically non-interfering air stream. The air curtains are installed to save on heating costs of buildings where doors are frequently or constantly open. The air curtains create a thick air barrier and thus prevent the exchange of warm indoor air and cold air from outside, thus helping to reduce the energy consumption costs of heated areas. The air curtains are available without or with heating (water or electric).
