濾(lv)(lv)筒(tong)是用(yong)于過濾(lv)(lv)的圓柱形部件,通常分為用(yong)于過濾(lv)(lv)氣態介質(zhi)(zhi)和過濾(lv)(lv)液體(ti)介質(zhi)(zhi)的濾(lv)(lv)筒(tong)。它由(you)木漿纖(xian)維濾(lv)(lv)紙或(huo)者紡(fang)(fang)織粘聚酯纖(xian)維無紡(fang)(fang)布制成(cheng)(cheng),它使用(yong)在(zai)過濾(lv)(lv)材料表(biao)面形成(cheng)(cheng)的微小透氣結構(gou)來阻(zu)擋氣體(ti)中的顆粒物(wu)質(zhi)(zhi),從(cong)而(er)物(wu)質(zhi)(zhi),從(cong)而(er)凈化空氣。