FRS-20 Air inlet cotton
•Washable and reusable
•Low resistance
•Excellent flame retardant
•Flexible
•Economical and practical
Application: ?5?m , 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 2-3 times
EN779 class: G2
Average arrestance:75%?ASHRAE52.1-1992?
EUROVENT4/5 class: EU2
DIN53438 Non-flammability Standard: F1
Final resistance: (suggest) 100Pa-(max)200Pa
Max. Dust holding capacity: 430g/?
Temp. resistance: 100?
