... and humidity. Dust Air Filter Bag DescriptionThe filter bag adopt composite nonwoven cloth as filter material. The metal frame ... humidity.MaterialIt adopts synthetic fibre as the material.Filter Bag ApplicationIt is mainly used for air purification ... Grade: G1, G2, G3, G4, F5, F6, F7, F8, F9, H10, H11Filter Efficiency: 85~99.9% ... 5, 10, 25 micron Dust Collector Air Filter Bag/Pocket Air Filter Bag