TA9級：油水分離器，精度3μm；TA7級：除油過濾器，精度1μm，1ppm;TA5級：微油過濾器，精度0.01μm,0.01ppm;TA3級：活性炭過濾器，精度0.01μm,0.003ppm(用于環(huán)境除臭);TAF級：除菌過濾器，精度0.01μm,*除菌。