FRS-40 bestselling pre-filter cotton,air pre-filter for air condition and ventilation  (manufacture)

 

 

 

Advantage:

 

 

 

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

 

 

 Features: 

 

               ·Washable and reusable

               ·Low initial resistance

               ·Large dust holding capacity

               ·Flexible

               ·Economical and practical

 

Application: ≥5μm, Filter dust, (used in the places 

where need washing and filtering), 

pre-filter through air filter program

 

Type: supply pads or rolls size

 

Media: synthetic fiber with gradual density

 

Washable: about 7-8 times

 

EN779 class: G4

 

Average arrestance:91%(ASHRAE52.1-1992)

 

EUROVENT4/5 class: EU4

 

DIN53438 Non-flammability Standard: F1 

 

Final resistance: (suggested) 200Pa-250Pa

 

Max. Dust holding capacity: 620g per square meters

 

Temp. resistance: 100°C

Type	Dimension	Rated air velocity(m/s)	Initial pressure drop (Pa)	Rated air flow(m2/h)
Length(m)	Width(m)	Thickness(mm)
Rolls	20	1/2	20 ± 2	1.0	38	3600