Features the latest technology in air cleaning : Pre-Filter plus Antibacterial Pre-Filter plus HEPA plus Activated Carbon plus TiO2 (photo-catalyst titanium dioxide) plus UV light plus Ion Flow Technology : TiO2 (Titanium Oxide) Filter plus UV : Photo catalytic oxidation is achieved when UV ray combines with a TiO2-coated filter. This process creates hydroxyl radicals and super-oxide ions, which are highly reactive electrons. These electrons aggressively combine with other elements in the air, such as bacteria and volatile organic compounds (VOC), which are harmful pollutants. Once bound together, the chemical reaction takes place between the super-charges ion and the pollutant, effectively oxidizing or burning the pollutant. This breaks the pollutant down into harmless carbon dioxide and water molecules. UV Light : Sterilizes the air by breaking down microorganisms, such as germs, viruses, bacteria, fungi, mold, etc. Effectively destroys the nucleic acids in these microorganisms so their DNA is disrupted and destroyed. Ion Flow : Generates negative ions to attract particles, such as dust, bacteria, pollen and many other allergens, which are positively charged. Once bonded, the particles become heavy and falls to the ground and out of your respiratory system. Input voltage : 120V / 60Hz. Rated power : 57W. HEPA type : 99. 5 percentage. Ideal area : 269 sq. ft. Noise level (Hi/Med/Low) : 48/39/28. Air flow (CFM) (Hi/Med/Los) : 115/75/50. Warranty : One-year parts and labor warranty. Customer must pay all repair and freight charges after warranty period. Warranty applies to residents of the United States only.