Contains: TiO2, photocatalyst, activated carbon filter, high concentration negative ion, USB port and strong turban fan Features: Apple shaped Contributes to decompose or exterminate various contamination including dust, particulate, bacterial, virus, VOC, smoke, and microorganism Adopts high concentration of negative ion, helps to exterminate static caused by computer Used in office, lab, computer room, and more Cotton piece included, can drop perfume to it, and then create a romantic sweet-scented environment Technical data: Working environment: Temperature: 0 to 4°C Relative humidity: 80% RH Dimensions: 80 x 80 x 70mm Input voltage: 3 to 5V Rated power: ≤3W Negative area: 3 x 102 ions/cm2 Effective area: 12m3 Lifetime of motor: ≥ 50,000hrs