1.With Good endurance; Large volume of containing dust; From one layer to 5 layer 2.99.97% efficiency at0.3 um 3.design size

vacuum cleaner dust collection bag is of Good endurance; Large volume of containing dust; From one layer to 5 layer; Filtration efficiency from 95% to HEPA grade 99.97% at 0.3um.

1.We can make it water & oil repellent(easier to remove dust).

2.H13 efficiency, 99.97% efficiency @0.3 um, IBR Certification

3.Unique Structure Design, Higher dust capacity

4.Higher efficiency and Lower resistance

5.Catching animal hair, particles, dust, smoke, bacteria, etc

Our professional engineer can design the filters and choose the suitable material according to customer's requirements such as air flow, installation size, efficiency, resistance and so on.

Testing standard: ASTM F1977-04Standard Test Method for Determining Initial, Fractional, Filtration Efficiency of a Vacuum Cleaner System1  DIN 44956-2.