choice material,fix simply,exquisite technics,high performance. Application:Main filters for commercial industrial AHU, and for cleanroom MAU systemsCase:Galvanised ... :Melt-blown super fine glass fibre or synthetic fibre,Vshape Efficiency (En 779):F6(60-80%) F7(80-90%) F8(90 ... yellow20AKF-ZXZ9-X12246290*595*1501000/681500/821900/1051.6F9faint yellow10 Medium Efficiency Air Filter