Medium Efficiency Air Filter Pocket Bag Air Filter G4 F5 F6 F7 F8
Extend Surface Bag Filter (Glass Fiber & Synthetic Fiber)(Cat.#AR 201,AR 202)
It is designed for those areas requesting a higher degree of air cleanliess. The filter media is available for Fiberglass (G series) and Synthetic Fiber (S series).
Per ASHRAE 52.1-1992 standard, the filters have an average atmospheric dust spot efficiency range 45-50%, 60-65%, 80-85% and 90-95% (in NBS Test Method); per ASHRAE 52.2, the efficiency is MERV9, MERV11, MERV12 & MERV14.