Class A - charcoal filtration. Removing oil vapor and odors carbohydrate, ensuring maximum remaining oil content of
Class H - Highly effective oil filtration. Removal of particles having a particle size of 0.01 micron including water and oil aerosols, maximizing the remaining contents of the aerosol of 0.01 mg / m (
Class G - Universal protection. Removal of particles of 1 micron in size, including the condensed liquid water and oil to ensure maximum remaining aerosol content of 0.6 mg / m (
Class D - dust filtration for general use. BSPT filters: Removing dust particles size up to 1 micron. Flange filters: Removing dust particles size up to 5 micron.