Keep your air totally clean with the Homedics® PetPlus True Hepa Air Purifier for large rooms. The 360-degree True HEPA filtration removes up to 99.97% of airborne allergens. Active carbon filtration reduces pet and household odors plus VOCs, UV-C light kills up to 99.9% of bacteria and viruses, the prefilter captures large particles such as pet dander while the ionizer helps in the purification process. Great for large rooms and pet owners.