FRS-20 Coarse filter cotton
·Washable and reusable
·Low resistance
·Excellent flame retardant
·Flexible
·Economical and practical
Application: ≥5μm , Filter dust
(especially used in the train or the subway, where the place has air-conditioner),
pre-filter through air filter program
Type: pads or rolls size
Media: synthetic fiber with gradual density,
Washable: about 2-3 times
EN779 class: G2
Average arrestance:75%(ASHRAE52.1-1992)
EUROVENT4/5 class: EU2
DIN53438 Non-flammability Standard: F1
Final resistance: (suggested) 100Pa-(max)200Pa
Max. Dust holding capacity: 430g/㎡
Temperature resistance: 100℃