Application: ≥5um Filter dust,(especial used in the train or the subway, where the place has air-conditioning), pre-filter through air filter program 

Type: Supply slices or rolls size  

Media: Synthetic fiber with gradual density 

Washable: about 2-3times

EN779 Class: G2

Average arrestance: 75% (ASHRAE52.1-1992)

EUROVENT 4/5 class: EU2

DIN53438 Non-flammability standard: F1

Final resistance : (suggest) 100Pa(max)200Pa 

Max. Dust holding  

Capacity: 430g/m2

Temp. Resistance : 100