Polluted air first passes through Alen'sreplaceable Pre-Filter to capture large particles, extending the life of the filter. In the second layer, air moves through Alen's True HEPA material 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. Relief from allergy and asthma symptoms has never been so simple.
*Test results demonstrate a 99.99% kill rate on E. Coli and Staph Bacteria.
Additional Features Include:
- True HEPA: Alen's first ever True HEPA filters remove 99.97% of particles greater than or equal to 0.3 microns.
- Extended filter life: 12-15 months. Contains more air purification materials than any other Alen filter, giving it the longest filter life we offer.
- Upgraded frame: New plastic filter frames with detachable prefilter for easy cleaning.
- Rubber gasket: Placed on the back of the filter frame to create an airtight seal for maximum efficiency.