double layer types air filter media by prefilter filtering

Quick Details
	Condition: New
	Efficiency: G3
	Construction: prefilter
	Filtration Grade: Pre Filter
	Medium Material: Cotton
	Porosity: 0
	Place of Origin: Guangdong, China (Mainland)
	Brand Name: Longwell
	Model Number: LWF
	Dimension(L*W*H): 1.0*20m*5mm
	Weight: 6kgs
	Certification: CE ISO ***
	Warranty: 360days
	After-sales Service Provided: Overseas third-party support available.

double layer types air filter media by prefilter filtering 

Advantages:
 Smooth airflow through paint booths
 Progressively built up thermal bonded polyester fibre
 
Application: For use as a prefilter in air conditioning, and spraybooth ventilation.
 
Media: Synthetic
 
EN 779:2002 filter class: G2. G3 .G4.
 
Arrestance efficiency: 85%-92%.
 
Temperature: 80.C -100.C Max.in continous service.
 
Fire rating: DIN 53438 class F1.
 
 
 SPECIFICATION:
 
Type	LWF-100	LWF-200	LWF-300	LWF-500	LWF60
Material	Polyester	Polyester	Polyester	Polyester	Polyester
Thickness (mm)	5	10	15	18	20
Air velocity (m/s)	2.0	2.0	2.0	2.0	2.0
Avg.arrestance (%)	2.0	2.0	1.5	1.5	1.0
Initial resistance (Pa)	20	30	35	25	40
Final resistance (Pa)	150	200	250	250	250
Anti-Temp. (.C)	68	83	85	88	91
Dust holding (g/m2)	380	450	500	550	580
Class (UL900)	G2	G3	G4	G4	F5
Non-flammability	DIN53438-F1	 	 	 	 
Roll size (m)	
2.0 * 20
1.6 * 20