... HV filter paper and glue, top quality stainless steel, Function and Features1, flow rate: 0.5-100cbm/min2, dust-proof ... accuracy: 3µm-12µm3, big filtration area, small resistance4, service life at normal working condition: 2000hAir filter, ... us for refercence, we also supply all all kinds oil filter, oil separator replacement for Atlas Copco, Ingersollrand,Sullair,Fusheng. ...