FRS-30 Coarse filter cotton

Washable and reusable
Low initial resistance
Large dust holding capacity
Flexible
Economical and practical
Application: ≥ 5μ m, Filter dust, (especially used in the train or the subway, where the place has air-conditioner), pre-filter through air filter program
Type: Supply pads or rolls size
Media: Synthetic fiber with gradual density, inlet side is blue.
Washable: about 4-5 times
EN779 class: G3
Average arrestance: 88%(ASHRAE52.1-1992)
EUROVENT4/5 class: EU3
DIN53438 Non-flammability Standard: F1
Final resistance: (suggested) 150Pa-250Pa
Max. Dust holding capacity: 520g/sqm
Temperature resistance: 100Celsius temperature