1.gradual density polyester fiber 2. Usage: mak Air clean 3 Media: synthetic fiber with progressive density, full

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.

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

EUROVENT4/5 class: EU2

DIN53438  Non-flammability Standard: F1 

Final resistance:  (suggested) 100Pa-(max)200Pa

Type	Dimensions			Rated air velocity(m/s)	Initial pressure drop (Pa)	Rated air flow(m2/h)
	Length(m)	Width(m)	Thickness(mm)
Rolls	20	1/2	10 ± 2	1.0	18	3600

air inlet cotton used in spray booth, dust collector filter cotton