🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPolskiTiếng ViệtTürkçeРусскийفارسی한국어中文EntityQ765753· pop 21· linked from 253 articlesair doorAlso known as air curtaindevice used to prevent air from moving from one open space to anotherAvailable in 20 languagesEspañolFrançaisDeutsch中文РусскийItalianoBahasa IndonesiaCatalanCzechHausaNorwegianConnectionsRadiant heating and cooling systemsEntitystandard temperature and pressureEntityCategoriesDoorsHeating, ventilation, and air conditioning