Synthetic Panel Pre air filters G3 G4 EN:779


Panel pre filters made of synthetic & cotton fiber, this kind of filter media can remove particles size about 0.5um with efficiency from 50% to 90%, the synthetic fiber filter can block large dust and collect it. This process is very important in normal HVAC system and cleanroom air system. As the panel pre filters already filter large dust, the second filters and third filters no more heavy burden for the large dusts.


Filter panel pre filters thickness can be 21mm, 46mm if the frame is aluminum alloy, filter media thickness can be 10mm, 20mm, 30mm and 40mm; 21mm aluminum alloy with 20mm filter media is the common design, the synthetic filter media is designed with electrostatic absorption ability, this design can help absorb fine dust easily.

Other frame such as corrugated paper, and thickness and length, width available, the corrugated paper frame is waterproof and can be used in moist environment for a long time.


Change the pre panel filters frequently can enlarge pocket filters and HEPA filters service life, the pre panel filters cannot be washable. If wash the filter media, the inside construction may be destroyed. This also can be used as fan coil filters.


Application: the pre filters for HVAC system in pharmaceutical, food process, hospital, library and other commercial buildings.

Specifications and Details
Efficiency G3 or G4 EN:779
Filter depth 21mm, 25mm and 46mm
Filter media Synthetic fiber
Frame material Aluminum alloy or gal
Grille Non
Customized size Available
Design Panel
Max Operating Temperature 175˚F (79˚C)

Tech Data

Item No Size(mm) Air flow rate Pressure drop Efficiency Filter Area
EA-PP-252G3 295*595*21 1000m³/h 35Pa G3 EN:779 0.17m²
EA-PP-442G3 495*495*21 1400m³/h 35Pa G3 EN:779 0.25m²
EA-PP-452G3 495*595*21 1700m³/h 35Pa G3 EN:779 0.29m²
EA-PP-462G3 495*625*21 1750m³/h 35Pa G3 EN:779 0.31m²
EA-PP-552G3 595*595*21 2000m³/h 35Pa G3 EN:779 0.35m²
EA-PP-252G4 295*592*21 1000m³/h 60Pa G3 EN:779 0.17m²
EA-PP-442G4 495*495*21 1400m³/h 60Pa G3 EN:779 0.25m²
EA-PP-452G4 495*595*21 1700m³/h 60Pa G3 EN:779 0.29m²
EA-PP-462G4 495*625*21 1750m³/h 60Pa G3 EN:779 0.31m²
EA-PP-552G4 595*595*21 2000m³/h 60Pa G3 EN:779 0.35m²

Customized size is available, air pressure drop ± 15% around;