| The fiber media can hold a large quantiy 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). |