Primary Ventilation Filter
1.Available in efficiency of 90% on 5
micron particles
2.Large airflow

Primary Ventilation Filter

Features: G4 coarse filter is available in efficiency of 90% on 5 micron particles; large airflow; low resistance; high dust holding capacity; reasonable price, low cost;Application: Used as first stage filters in air condition system and as prefilters in multilevel filtering system.

Model, dimensions and parameters: 

Model	Dimensions(mm) W×H×D	Rated air flow M3/h	Initial Resistance (pa)	Efficiency   (rank) %        EN779		Materials
						Frame	Filter media	Protective nets
G4	595*595*46 595*495*46 595*295*46 495*495*46 295*295*46	3200 2700 1600 2200 800	45	90	G4	Paper Aluminum alloy Galvanized sheet	G4 polyester fibre	Galvanised mesh or stainless steel nets