Product Review

About product:
Features: Install the activated charcoal pre-filters onto HEPA filters, capture and filter odors, particles, dust, pollutants, allergens etc., enhance the purifying effect of HEPA filters, prolong the life of HEPA filters.
Compatible model: They fit the HEPA filters for use in the Holmes air purifier models: HAP615, HAP625, HAP650, HAP675, HAP675RC, HAP725, HAP750, HAP1725, HAP1750, HAP8615. They also are compatible and fit filters for the GE: 106633, 106643, 106653 and Bionaire: BAP1175 BAP1300, BAP1125, BAP1150, BAP1225, BAP1250 air purifiers.

Specifications:
Air purifier pre-filter size(LW): 9 1/8 x 6 inches, can trim pre-filters to right size for air purifier.
Air purifier pre-filter thickness: 5 mm
Material: activated-charcoal
Quantity: 8 pieces

Package includes:
8 x Air purifier pre-filters

Replacement:
Recommend average is 2-3 months between replacements.
Note:
Filter contain charcoal, please do not rinse.