The PetPlus odor filter reduces pet odors making the HoMedics TotalClean PetPlus 5-in-1 Tower Air Purifier perfect for pet owners. With 360-degree True Hepa filtration, remove up to 99.97% of airborne allergens. The pre-filter captures large particles such as dust and dander in large rooms up to 280ft2. Uv-c light kills bacteria and viruses with 3 speed options and optional ionizer. Great for family rooms, bedrooms and pet areas with an essential oil aromatherapy tray (3 pads included) and optional nightlight.