Structure:

Frame	Filter Media	Face net
Extruded Aluminum/Galvanized steel sheet	Polyester	None/Spot mesh/Expanded mesh

Product features:
-Rigid structure for demanding applications
-Filter media replaceable, thus cost effective
-Thermal Stability: 80℃ for synthetic fiber, 100℃ for glass fiber

Application:
As prefilters for intake, exhaust and recirculating air systems, extending the operational lifetimes
of the downstream fine filters.

General technical data:
-G2~G4 EN779; MERV3-8 ASHRAE
-Available in 20~95mm depth
-Average arrestance: 70%~94%(ASHRAE 52.2-1992)
-DIN 53438 Flammability: F1
-UL 900 Standard: Class 2
-Max air flow rate: 125% of nominal air flow
-Final pressure drop: 200-250Pa
-Thermal Stability: 80℃ for synthetic fiber, 100℃ for glass fiber
-Moisture resistance: 100% RH

Sample data:

Type	W*H*D(mm)	Filter Class	Filter Area(m2)	Airflow(CMH)	Intial Pressure Drop(Pa)
Flat panel(Synthetic fiber)	592*592*48	G4	0.34	2540	60
	287*592*25	G3	0.17	800	45
	495*592*20	G4	0.28	2110	95
	495*592*46	G4	0.28	2110	60
Flat panel (Glassfiber)	592*592*45	G3	0.36	3400	60
	292*592*45	G4	0.18	1700	75
	592*592*96	G4	0.36	3400	80
Pleated panel(Synthetic fiber)	592*592*45	G2	0.76	3000	30
	592*592*45	G3	0.76	3000	50
	592*592*45	G4	0.76	3000	70

https://drive.google.com/file/d/0Bxk0k7JxzX13VENHN2E3dDRURXc/view