choice material,fix simply,exquisite technics,high performance. Application:Main filters for commercial industrial AHU, and for cleanroom MAU systemsCase:Galvanised steel or aluminium alloy Inner frame:Galvanised steel wire netting Media:Melt-blown super fine glass fibre or synthetic fibre,Vshape Efficiency (En 779):F6(60-80%) F7(80-90%) F8(90-95%) F9(≥95%) Maximum pressure drop:450 Pa ...