GermGuardian Air Purifier with HEPA 13 Filter, Removes 99.97% of Pollutants, Covers Large Room up to 743 Sq. Foot Room in 1 Hr, UV-C Light Helps Reduce Germs, Zero Ozone Verified, 22”, Gray, AC4825E

Circulates the air 1x per hour in 743 square foot rooms and 4.8x per hour in 153 sq. ft rooms, making it ideal for medium to large sized rooms such as: dorm rooms, bedrooms, and other living areas 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 air UV-C light helps reduce airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds Pre-filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter Ultraviolet - C (UV-C) acts as the ultimate line of defense, helping reduce airborne germs such as Staphylococcus Albus, Escherichia Coli, Aspergillus Niger, and Phi-X174 as well as airborne bacteria and mold spores Activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and more The lowest setting can be used as gentle white noise at night for a quiet, restful sleep Only one single filter needs to be replaced every 6-8 months depending on the use of the product; Replacement filter is filter B (model FLT4825). To lengthen the life of your filter, a 4 pack of the carbon filters is also available (model FLT22CB4). IMPORTANT: Use genuine Guardian Technologies replacement parts to maintain product performance and warranty