Coarse filter cotton

Coarse filter cotton Application: ≥5μm, Filter dust , (especially used in the train or the subway, where the place has air-conditioner), pre-filter through air filter program Type: supply pads or rolls size Media: synthetic fiber with gradual density, inlet side is blue. Washable: about 4-5 times EN779 class: G3 Average arrestance:88%(ASHRAE52.1-1992) EUROVENT4/5 class: EU3 DIN53438 Non-flammability Standard: F1 Final resistance: (suggested) 150Pa-250Pa Max. Dust holding capacity: 520g/square meter Temperature resistance: 100°C TypeDimensionsRated air velocity(m/s)Initial pressure drop (Pa)Rated air flow(m2/h)Length(m)Width(m)Thickness(mm)Rolls201/215 ± 21.5205400