5-IN-1 AIR PURIFIER FOR HOME - True HEPA air filter reduces up to 99.97% of harmful germs, dust, pollen, pet dander, mold spores, and other allergens as small as .3 microns from the airPET PURE FILTER - An antimicrobial agent is added to the filter to inhibit the growth of mold, mildew and odor-causing bacteria on the filter's surfaceKILLS GERMS - UV-C light helps kill airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compoundsTRAPS ALLERGENS - Pre-filter traps dust, pet hair, and other large particles while extending the life of the HEPA filterREDUCES 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 sleepSETTINGS - Choose between 5 speed settings, up to 8-hour timer, and an optional UV-C lightROOM SIZE - 28-inch purifier filters air 4x per hour at max speed in medium to large rooms up to 180 sq. feet. CADR RATING: Dust (123) Pollen (128) and Smoke (116)GENUINE REPLACEMENTS - Only use Genuine GermGuardian replacement parts to maintain performance. Replace the filter every 6-8 months and the UV-C bulb every 10-12 months. Filters: GermGuardian filter C (model FLT5250PT) or a 4 pack of GermGuardian carbon filters (model FLT28CB4). UV-C Bulb: Model LB5000AHAM VERIFIED & ENERGY STAR CERTIFIED - This air purifier was rated for its ability to filter tobacco smoke, dust, and pollen from rooms and be Energy Star Certified and CARB compliant