Traps Allergens: HEPA filter captures 99.97% of allergens including pet dander, dust mites and pollen. The Pet Pure™ is an antimicrobial agent added to the filter to inhibit the growth of mold, mildew and odor-causing bacteria on the surface of the filter.Reduces Odors: Charcoal filter reduces common odors from pets, smoking and cookingFights Germs: Optional UV-C light technology works with Titanium Dioxide to kill airborne bacteria, viruses, germs and mold spores. Carb Compliant.AHAM Verified and Energy Star Certified: 28 inch 5 speed digital tower is best used for rooms up to 180 Sq. feet. Filters and circulates room air over 4x per hour. The higher the CADR the faster the unit filters the air. CADR Dust (126), Pollen (128) and Smoke (116).Filter Replacement Reminder: Only one single filter needs to be replaced every 6-8 months depending on the use of the product; Replacement filter is filter C (model FLT5250PT). IMPORTANT: Use genuine Guardian Technologies replacement parts to maintain product performance. 5 year limited manufacturer warranty.