Features of V shape HEPA filter:
1) Filter efficiency: high, sub-high and medium efficiencies available
2) The glue and pleats are assembled by computer controlled full automatic machine
3) Filter media: supper fiberglass, PP or other synthetic fiber
4) Dimensions: international standards
5) All tested by laser airborne particle counter before delivery

Features of V shape active carbon filter:
1) Filter media: supper absorb active carbon materials
2) Frames: galvanized steel plate or AL alloy plate
3) All tested by laser airborne particle counter before delivery