Coarse Filter Cotton
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Coarse Filter Cotton
Application：
Suitable for high-standard ventilation systems:
- Air conditioning & air ventilation systems
- Pre-filtration for air supply systems in high-dust environments
- Pre-filtration and airflow equalization for air supply in spraying systems and baking equipment
Material & Features：
- Made of polyester fibers with progressive density, processed by carding, lapping and hot air bondin
- 100% relative humidity resistance, washable
- Temperature resistance: up to 80°C (176°F)
- Flame retardant & self-extinguishing, compliant with DIN53438-F1 fire standard
- Captures particles and impurities ≥5μm
- Available in rolls or sheets
Technical Parameters：
|
Type
|
Size
|
Test Wind Speed（m/s）
|
Initial Resistance（Pa）
|
Rated Air Volume（m3/s)
|
Filtration Efficiency
ASHRAE 52.1-1992
|
Dust Holding Capacity（g/m2)
|
Final Resistance（Pa)
|
Filter Class
|
GSM（g/m2)
|
||
|
Length（m）
|
Height（m）
|
Thickness(mm）
|
|||||||||
|
40
|
20
|
1/2
|
20+2
|
1.5
|
27
|
5400
|
90
|
550
|
250
|
G4/EU4
|
250
|
|
40F/1
|
20
|
1/2
|
20+3
|
1.5
|
32
|
5400
|
92
|
580
|
250
|
G4/EU4
|
280
|
|
40F/2
|
20
|
1/2
|
20+1
|
1.5
|
38
|
5400
|
95
|
600
|
250
|
G4/EU4
|
300
|
Notes：Custom specifications are available. Slight color difference between pictures and actual products may exist, please refer to the delivered goods.
