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Polluted air first passes through Alen's replaceable Pre-Filter to capture large particles, extending the life of the filter. In the second layer, air moves through Alen's True HEPAmaterial that attracts and captures dust, pollen, pet dander, mold spores and other airborne pollutants. Alen then adds an antimicrobial compound to the True HEPA, protecting the filter from harmful bacteria* and microbe growth. In the final layer, clean air passes through a thick layer of carbon for removal of odors and chemicals commonly found in the air from cleaning products, smoke, cooking, and various other household materials.
*Test results demonstrate a 99.99% kill rate on E. Coli and Staph Bacteria.
Additional Features Include:
There is no Forever Guarantee for Alen filters.