washable filter

1).washable hepa filter isdesigned to be economical with large capacity of air flowing and low resistance 2).good air permeability and high degree of keeping out of dust 3).Compared the standards together, the volume of filtering containing dust is 30% more, filtration efficiency is from 80% to 99.9% HEPA grade 99.97% at 0.3um 4).We can provide OEM service for all kinds of such washable hepa filter. Testing standard: EN 1822-52002 EN779-2003 ASHRAE_52.2-1999