HEPA filter, air flow: 390~3000m3/h;Primary resistance (by 0.5m/s): Max. 200Pa;Final resistance : 400Pa;efficiency: 95~99.995%. ... for the application of air conditioning.The HEPA filter is mainly used as high efficiency filtration element in air conditioning system for ... .5m/s): Max. 200PaFinal resistance : 400PaFiltration efficiency: 95%, 99.5%, 99.95%, 99.995%Efficiency rate: H11, H12, H13, H14 (EN ...