ゆうあつかんきせん 有圧換気扇 LinksSentence search for 有圧換気扇Sentence search for ゆうあつかんきせんKanji details for 有, 圧, 換, 気 and 扇Edit in JMdict Noun1. negative pressure ventilation fan; exhaust fan Discussions Log in to talk about this word.