FRS-20 Air inlet cotton

·Washable and reusable
·Low resistance
·Excellent flame retardant
·Flexible
·Economical and practical

Application: e5¼m , 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