... , 3.no binder, no smell, 4.Apply for HEPA, PTFE Air Purifier Media - Non Woven Supporting Layer Filter Fineness: 5 umEfficiency ... : 97%Application: home air purifier system, HEPA media, PTFE membrane. etcTechnical data of YMD80HG ... /m 2.87Resin Contain%——8Heat Resistance °C≥1309Filtration Efficiency%≥97 Air Purifier Media YMD80HG