Germ Guardian Tower Air Purifier with HEPA Filter and UV-C Sanitizer, AC5000EThe 3-in-1 GermGuardian Air Purifier with HEPA Filter is perfect for allergy sufferers. The HEPA filter captures 99.97% of dust and allergens as small as .3 microns in size, while the charcoal filter captures odors! More than just a filter, UV-C light helps reduce airborne bacteria, viruses, mold spores* and works with Titanium Dioxide to reduce volatile organic compounds. Standing 28 inches tall, it is lightweight and ideal to use in rooms up to 189 sq. feet. Includes a UV-C control and a filter change indicator. Choose from 3 speeds, including a low speed that runs ultra-quiet. *Tested with Staphylococcus Albus, and Escherichia Coli, Aspergillus Niger, and Phi-X174.Traps Allergens: HEPA Filter captures 99.97% of dust and allergens as small as .3 microns such as household dust, pet dander, mold spores and plant pollens.Fights Germs: UV-C light helps reduce airborne bacteria, viruses, mold spores* and works with Titanium Dioxide to reduce volatile organic compounds*Tested with Staphylococcus Albus, and Escherichia Coli, Aspergillus Niger, and Phi-X174Energy Star Certified: 28 inch 3 speed tower is best used for rooms up to 189 Sq. Ft. Filters and circulates room air over 4x per hour. The higher the CADR the faster the unit filters the air. CADR Dust (132), Pollen (138) and Smoke (122).Reduces Odors: Activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and moreQuiet Operation: The lowest setting can be used as gentle white noise at night for a quiet, restful sleep28 in. 3 speed tower is best used for medium to large rooms and CADR rated 125+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 FLT5000). To lengthen the life of your filter, a 4 pack of the carbon filters is also available (model FLT28CB4). IMPORTANT: Use genuine Guardian Technologies replacement parts to maintain product performance and warranty