Alen BreatheSmart FIT50 HEPA-Silver Replacement Filter to Remove Allergens, Asthma and Bacteria (FF50-Silver-Carbon-4, 4-Pack);

Designed for the Alen® BreatheSmart-FIT50 HEPA Air Purifier, the Alen HEPA-Silver Filter combines three layers of filter technology to purify and freshen the air in your home while protecting the filter against bacteria and microbes. Polluted air first passes through Alen's washable Pre-Filter to capture large particles, extending the life of the filter. In the second layer, air moves through a unique, electrostatically charged HEPA type material that attracts and captures dust, pollen, pet dander, mold spores and other airborne pollutants. Alen then adds an antimicrobial compound to the HEPA type material, protecting the filter from harmful bacteria and microbe growth. In the final layer, clean air passes through a layer of Alen's Activated Carbon, reducing light odors and chemicals commonly found in the air from cleaning products, smoke, cooking, pets and various other household materials.