http://www.cofonmedia.com/comp....osite-material/Custo Composite Material Product Feature 1) The filtration material is made from non-woven fabrics, and the synthetic fiber; 2) The filtration material compounds with the material net, and is designed into the foldaway, which will provide the current air with the largest filtration area, 5 times filtration area as the common plane mesh. 3) Paper frame and metal frame are available, which is convenient for replace. 4) The moisture-proof 100%; 5) Heat resistance 80潞 C Specification Filtration ClassEff. (%)Filter objectThickness (mm)Weight (g/m2)I.N.P (Pa)F.N.P (Pa)Dust capacity (g/m2)Material G495%鈮?渭m3卤1260卤1015卤22001PE Nonwoven M545%鈮?渭m3卤1230卤107卤22501PE+PP M665%鈮?渭m3卤1240卤1011卤22501PE+PP F785%鈮?渭m3卤1250卤1016卤22501PE+PP F890%鈮?渭m3卤1260卤1023卤23001PE+PP F995%鈮?渭m3卤1270卤1028卤23001PE+PP Filtration ClassEff.. (%)Filter objectThickness mmWeight (g/m2)I.N.P (Pa)F.N.P (Pa)Dust capacity (g/m2)Material M545%鈮?渭m1.0卤0.2200卤1033001Electrostatic Needle-punched Filter Media M665%鈮?渭m1.1卤0.2210卤1043001Electrostatic Needle-punched Filter Media F785%鈮?渭m1.2卤0.2230卤1063001Electrostatic Needle-punched Filter Media F890%鈮?渭m1.5卤0.2260卤1073501Electrostatic Needle-punched Filter Media Filtration ClassEff. (%)Filter objectThickness