Two filter layer structures: Crude filter: domestic high quality nonwoven cotton, can catch the dust larger than 10μm, fixed on the vent door of work area, easy to replace. Refined filter: BAOCHI600G high quality filter made by customization, multi-layers, dust capacity: ≥420g/m2, fixed on the bottom of plenum, supported by coated top net, beautiful and easy to replace. The whole filter system has a big dust capacity, low windage,long-use, the filter rate is more than 98%,TSP≤1.4mg/m3. |