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適用(yong)(yong)于(yu)通風、空(kong)調系(xi)統(tong)無回風管道的(de)機房(fang)回風口或管道末(mo)端的(de)送回風口，以彌補系(xi)統(tong)的(de)消聲量不(bu)足；亦可用(yong)(yong)于(yu)相鄰用(yong)(yong)房(fang)有開孔、通風要求時(shi)起(qi)隔聲作用(yong)(yong)；以及其(qi)他(ta)聲源設(she)備（機房(fang)）諸如制(zhi)冷機、冷卻塔、柴油發(fa)動機組(zu)等，滿足其(qi)通風散熱(re)、采光、圍護(hu)的(de)要求同(tong)時(shi)，控制(zhi)噪聲向(xiang)外(wai)輻射(she)。

消(xiao)(xiao)聲(sheng)(sheng)(sheng)百葉的分類：消(xiao)(xiao)聲(sheng)(sheng)(sheng)百葉窗分為橢圓式(shi)消(xiao)(xiao)聲(sheng)(sheng)(sheng)百葉、月牙式(shi)消(xiao)(xiao)聲(sheng)(sheng)(sheng)百葉、防雨式(shi)消(xiao)(xiao)聲(sheng)(sheng)(sheng)百葉．