Primary air filter

Primary panel air filter

Filter material is white or blue-white pre-filter media, G2/G3, washable and recycled. 
Aluminum/Galvanized/Cardboard frame, normal thickness: 21mm/25mm/46mm 
Face net: Paint-sided care net/Aluminum net 
Low resistance, large air flow and wide filtering area, long service life 
Application: Mainly used for filtering particles larger than 5um in the air, it is widely applied in air conditioning system and clean room for pre-filtration.

Primary Pleated air filter

Filter material is white or blue nonwoven fabric and polyester fiber compounded material ,G2/G3 
Aluminum/Galvanized/Cardboard frame, normal thickness: 21mm/25mm/46mm/96mm 
Face guard: Paint-sided care net/Aluminum net 
Low resistance, large air flow and wide filtering area 
Light weight, and lower price, more environment friendly 
Application: Mainly used for filtering particles larger than 5um in the air, it is widely applied in air conditioning system and clean room for pre-filtration.

Primary Skeleton Panel air Filter

Filter material is white or blue-white pre-filter media, G2 / G3 
Aluminum/Galvanized frame, normal thickness: 46mm / 96mm 
Skeleton: Galvanized steel, two layers’ skeletons. 
Low resistance, large air flow and wide filtering area, long service life 
Application: Mainly used to absorb above 5um particles, widely applied to HVAC system and ventilation system as primary or medium filtration.