在(zai)裝修時，對廚房里(li)的(de)(de)(de)(de)各個排風口都(dou)要(yao)(yao)進(jin)行有(you)(you)效的(de)(de)(de)(de)處(chu)理，并且還要(yao)(yao)檢查處(chu)理的(de)(de)(de)(de)效果。在(zai)抽油(you)(you)煙(yan)(yan)(yan)(yan)機與排煙(yan)(yan)(yan)(yan)井(jing)道(dao)相接的(de)(de)(de)(de)部位(wei)增加止煙(yan)(yan)(yan)(yan)閥(fa)，鍍鋅板(ban)油(you)(you)煙(yan)(yan)(yan)(yan)機制作，并把抽油(you)(you)煙(yan)(yan)(yan)(yan)機和排煙(yan)(yan)(yan)(yan)管連接處(chu)用發(fa)泡劑(ji)固定密封，減少由于氣(qi)味(wei)倒流造成油(you)(you)煙(yan)(yan)(yan)(yan)廢氣(qi)的(de)(de)(de)(de)污染。每(mei)家的(de)(de)(de)(de)廚房里(li)都(dou)有(you)(you)煙(yan)(yan)(yan)(yan)道(dao)，同(tong)時煙(yan)(yan)(yan)(yan)道(dao)也有(you)(you)主(zhu)副(fu)之分，主(zhu)煙(yan)(yan)(yan)(yan)道(dao)貫(guan)穿整個樓體，而(er)副(fu)煙(yan)(yan)(yan)(yan)道(dao)是相對獨立(li)的(de)(de)(de)(de)。一(yi)般家里(li)的(de)(de)(de)(de)油(you)(you)煙(yan)(yan)(yan)(yan)會先到副(fu)煙(yan)(yan)(yan)(yan)道(dao)里(li)，然后再通(tong)過隔(ge)板(ban)上的(de)(de)(de)(de)孔進(jin)入主(zhu)煙(yan)(yan)(yan)(yan)道(dao)，這樣可保證每(mei)戶(hu)的(de)(de)(de)(de)油(you)(you)煙(yan)(yan)(yan)(yan)是隔(ge)離開(kai)來的(de)(de)(de)(de)。而(er)如(ru)果將副(fu)煙(yan)(yan)(yan)(yan)道(dao)直接連接主(zhu)煙(yan)(yan)(yan)(yan)道(dao)，就會由于壓(ya)力(li)過低而(er)導致倒煙(yan)(yan)(yan)(yan)或串煙(yan)(yan)(yan)(yan)現象。

止(zhi)逆(ni)閥(fa)(fa)(fa)(fa)門勤更(geng)換(huan)：如(ru)果已經把副煙(yan)(yan)(yan)道(dao)拆除或是(shi)需(xu)要防止(zhi)倒(dao)煙(yan)(yan)(yan)的(de)效(xiao)果更(geng)好，那么使用(yong)煙(yan)(yan)(yan)道(dao)止(zhi)逆(ni)閥(fa)(fa)(fa)(fa)。一(yi)(yi)般情況(kuang)下，油(you)煙(yan)(yan)(yan)機(ji)(ji)的(de)止(zhi)逆(ni)閥(fa)(fa)(fa)(fa)效(xiao)果不(bu)是(shi)很(hen)明顯，而在(zai)煙(yan)(yan)(yan)道(dao)安(an)裝(zhuang)止(zhi)逆(ni)閥(fa)(fa)(fa)(fa)可(ke)以保護油(you)煙(yan)(yan)(yan)機(ji)(ji)，飯店廚房油(you)煙(yan)(yan)(yan)機(ji)(ji)制作(zuo)，使煙(yan)(yan)(yan)道(dao)里的(de)煙(yan)(yan)(yan)不(bu)會(hui)向管(guan)道(dao)和抽(chou)油(you)煙(yan)(yan)(yan)機(ji)(ji)內(nei)倒(dao)灌。不(bu)過安(an)裝(zhuang)止(zhi)逆(ni)閥(fa)(fa)(fa)(fa)后要定期(qi)清洗，否則會(hui)使止(zhi)逆(ni)閥(fa)(fa)(fa)(fa)呈(cheng)打開狀態失去效(xiao)果而且煙(yan)(yan)(yan)道(dao)止(zhi)逆(ni)閥(fa)(fa)(fa)(fa)兩(liang)年左右就更(geng)換(huan)一(yi)(yi)次(ci)。抽(chou)油(you)煙(yan)(yan)(yan)機(ji)(ji)的(de)安(an)裝(zhuang)位(wei)置十分重要，建(jian)議管(guan)道(dao)越短越好，有(you)些業主會(hui)為了美觀，把管(guan)道(dao)拉得比較長。這樣一(yi)(yi)來，關掉(diao)油(you)煙(yan)(yan)(yan)機(ji)(ji)后，管(guan)道(dao)里還(huan)會(hui)集聚很(hen)多油(you)煙(yan)(yan)(yan)排不(bu)出去，再倒(dao)回室內(nei)。

一(yi)(yi)般(ban)煙(yan)(yan)(yan)(yan)(yan)機排煙(yan)(yan)(yan)(yan)(yan)有(you)二種(zhong)方式：一(yi)(yi)種(zhong)是(shi)(shi)走(zou)室內煙(yan)(yan)(yan)(yan)(yan)道(dao)，一(yi)(yi)種(zhong)是(shi)(shi)從墻上(shang)開(kai)洞將油(you)煙(yan)(yan)(yan)(yan)(yan)直接排到(dao)室外，后一(yi)(yi)種(zhong)方法排煙(yan)(yan)(yan)(yan)(yan)比較(jiao)通(tong)暢，但一(yi)(yi)般(ban)老房子可以(yi)這(zhe)(zhe)樣開(kai)孔，青島油(you)煙(yan)(yan)(yan)(yan)(yan)機制作(zuo)，但很(hen)多新(xin)建(jian)的(de)(de)(de)(de)樓(lou)(lou)房物業不(bu)允許(xu)隨便在(zai)外墻開(kai)洞，只能走(zou)公(gong)共煙(yan)(yan)(yan)(yan)(yan)道(dao)。廚房煙(yan)(yan)(yan)(yan)(yan)道(dao)的(de)(de)(de)(de)結構有(you)二種(zhong)，不(bu)銹鋼油(you)煙(yan)(yan)(yan)(yan)(yan)機制作(zuo)，老式煙(yan)(yan)(yan)(yan)(yan)道(dao)里面是(shi)(shi)空的(de)(de)(de)(de)，直上(shang)直下(xia)，現在(zai)很(hen)多新(xin)建(jian)樓(lou)(lou)房的(de)(de)(de)(de)煙(yan)(yan)(yan)(yan)(yan)道(dao)，都是(shi)(shi)分主煙(yan)(yan)(yan)(yan)(yan)道(dao)和副煙(yan)(yan)(yan)(yan)(yan)道(dao)。老式煙(yan)(yan)(yan)(yan)(yan)道(dao)沒有(you)副煙(yan)(yan)(yan)(yan)(yan)道(dao)，排煙(yan)(yan)(yan)(yan)(yan)通(tong)暢，但是(shi)(shi)容(rong)易返味，就是(shi)(shi)樓(lou)(lou)下(xia)做飯排出的(de)(de)(de)(de)油(you)煙(yan)(yan)(yan)(yan)(yan)容(rong)易返到(dao)樓(lou)(lou)上(shang)的(de)(de)(de)(de)廚房里，這(zhe)(zhe)樣的(de)(de)(de)(de)煙(yan)(yan)(yan)(yan)(yan)道(dao)在(zai)排煙(yan)(yan)(yan)(yan)(yan)口上(shang)加止逆閥(fa)。