空气使受到污染的空气被洁净到生产、生活所需要的状态，也就是使空气达到一定的洁净度。
滤芯的材质
纸质滤芯
化纤滤芯：玻璃纤维 金属纤维烧结毡 丙纶纤维 涤纶纤维
网式滤芯：不锈钢网
线隙滤芯
装在过滤设备中,用于分离物质的元件,根据材质,用途分为很多种.金属滤芯,活性炭滤芯,空气滤芯等.过滤,
奔驰滤芯型号齐全：R90-MER-01,A5410900151,E251HD11, A0000901151 A0000901451
A0000901551 A0001801609 A0000902051
A0004300969 A0010948304 A0020942404 A003094150467
A0030944204 A0040941104 A0040942404 A0040943304 A0004771302
120376,H12110/2,C24650/1,4220920005,42209200051,3318853,3903640,3903410,
3315116,0000322405,0000900652,0001800009,0001802209,0004290897,
0004293695,0004300669,0004660004,0004331304,0004776415,0004776915,
0008301218,0008356947,0010920401,0010920501,0011845625,0011849425,
0014772101,0014776901,0020941602,0020941704,0021849001,0030940804,
0030944904,1020940004,1021840301,1201800009,1370940004,1661800710
,21083000818,3554700092,3661841225,3762700198,6681800009,8690940020,
904100009,9061800009
