Specifications: hepa filter 1).High efficiency, low resistance 2).Easy to install 3).Long service time, quick delivery HEPA Filter Product description: The filter efficiency of HEPA (High efficiency particular air) can reach 99.97% for the particles with size over 0.3um, which is the ideal air filters. The materials of HEPA can be classified five types: PP filter paper, glass fiber, compound PP+PET filter paper, melt-blown+polyester non-woven, melt-blown+glass fiber. Property: small wind resistance, large dust capacity, high efficiency. Different dimensions and shapes can be produced according to client’s request to match different machines. Function: Widely used on air purifier, central air conditioner, clean room etc to dispose dust and pollen. Performance index: Filter type Filter efficiency(%) Wind resistance (5.33cm/s) Service life Glass fiber 9.97 >190pa 8-12 months PP fiber 99.9 60-80pa 8-12months PP+PET compound 99.9 40-60pa 8-12months Melt blown+ polyester non-woven 99.97 40-60pa 8-12months Melt blown+ glass fiber 99.7 20-30pa 8-12months Pleated air purifier Hepa filter