換氣(qi)(qi)(qi)(qi)(qi)(qi)扇(shan)的換氣(qi)(qi)(qi)(qi)(qi)(qi)方場所(suo)狀況式(shi)有排(pai)(pai)(pai)出式(shi)、吸(xi)(xi)入(ru)式(shi)、并(bing)用式(shi)三種。排(pai)(pai)(pai)出式(shi)從自然進氣(qi)(qi)(qi)(qi)(qi)(qi)口進入(ru)空(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)，通(tong)過換氣(qi)(qi)(qi)(qi)(qi)(qi)扇(shan)排(pai)(pai)(pai)出污(wu)(wu)濁(zhuo)空(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)；吸(xi)(xi)入(ru)式(shi)通(tong)過換氣(qi)(qi)(qi)(qi)(qi)(qi)扇(shan)吸(xi)(xi)入(ru)新(xin)鮮空(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)，從自然排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)口排(pai)(pai)(pai)出污(wu)(wu)濁(zhuo)空(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)；并(bing)用式(shi)是吸(xi)(xi)氣(qi)(qi)(qi)(qi)(qi)(qi)與(yu)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)均(jun)由換氣(qi)(qi)(qi)(qi)(qi)(qi)扇(shan)來完成。 由電(dian)動機帶動風(feng)葉旋轉(zhuan)驅動氣(qi)(qi)(qi)(qi)(qi)(qi)流，使室內外(wai)空(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)交換的一類(lei)空(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)調(diao)節電(dian)器。又稱通(tong)風(feng)扇(shan)。換氣(qi)(qi)(qi)(qi)(qi)(qi)的目的就是要除去室內的污(wu)(wu)濁(zhuo)空(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)，調(diao)節溫度、濕(shi)度和感(gan)覺效果。換氣(qi)(qi)(qi)(qi)(qi)(qi)扇(shan)廣泛(fan)應用于(yu)家(jia)庭及(ji)公共場所(suo)。