Air Filter G4

Air Filter G4 is a coarse, medium-efficiency pre-filter in HVAC systems, designed to capture large airborne particles like dust, pollen, and fibers (over 10 microns) before they reach more delicate filters, protecting equipment, extending filter life, and maintaining airflow in commercial buildings, factories, and ventilation systems. Classified as ISO Coarse or EN779 G4, it offers high dust holding with low airflow resistance, often using synthetic media in a pleated design.