e-PFTFE Micro-Pore Membrane For Air Filter The diameter of the e-PTFE used for air clear and dust clear is usually between 1um-7um. Space rate is above 85%. After laminated with the PE,PP & non-woven fabric,the dust clear rate could be above 99.99%. The use term is longer than 3 years. The air permeability volume could be above 3-6m3/.min. The filter made of e-PTFE membrane is the most advanced filter material all over the world. Technical data:Thickness25um-40umMVP> 16000g/.24hr(ASTME-96-2000)WP> 6000mmTemperature Range-150 +300Ultraviolet Resistant> 97%

air filter membrane