High efficiency filter can be divided into: HEPA and non-HEPA. HEPA filter is made of ultra-fine glass fiber filter, sheet of paper, aluminum foil as the partition plate with wood frame or aluminum frame and plastic made with high filtration efficiency, low resistance, large amount of wind advantages, widely used in a variety of local purification equipment and clean workshop. No HEPA filters are made with fine glass fiber filter, hot melt adhesives do partition, with a variety of frame assembly, frame appearance, and have compared HEPA filter, in the same amount of wind, having small size, light weight, compact structure, reliable performance advantages.
