The perfect choice for air conditioner ventilation system. The fiber media can hold a large quantity of dust. The efficiency is stable in the whole life-span. Optimized V-collector structure has low resistance and long life-span. The average efficiency is 45%, 65%, 85% and 95% by colorimetry (ASHRAE52.1-1922) Filtration efficiency grade: F5, F6, F7, F8, F9 (EN779).
