Features & details 4 in1 air purifier: True HEPA air filter reduces up to 99.97% of harmful dust, pollen, pet dander, mold spores, and other allergens as small as .3 microns from the air; Input voltage: Ac120 volt; 60 hertz Kills germs: UV-C light helps kill airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds Traps allergens: Pre filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter Reduces odors: Activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and more Quiet mode: Ultra-quiet sleep mode with a programmable timer helps you get a good night’s rest with cleaner air