有ゆう圧あつ換かん気き扇せんMeaningsNoun1. negative pressure ventilation fan; exhaust fanKanji used有be in possession圧pressure換exchange気state of mind扇folding fanComposed of有ゆうexistence; possession; having; limited companyNoun圧あつpressure; forceNoun換かん気き扇せんventilation fan; extractor fanNoun