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空(kong)氣(qi)過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)材料的(de)(de)范圍比較廣泛，通常所指的(de)(de)過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)棉（過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)網）一般指空(kong)氣(qi)過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)。過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)棉根(gen)據材質的(de)(de)不(bu)同，濾(lv)(lv)(lv)(lv)料分為四種類(lei)型(xing)：合(he)成(cheng)纖(xian)維(wei)過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)棉、無紡布過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)棉、玻璃(li)纖(xian)維(wei)過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)棉、活性(xing)炭過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)棉。