... Air Purifie combines TiO2 photocatalyst, activated carbon filter, high concentration negative ion.-Adsorbing harmful gas, smoke, dust, particulate, volatile organic compound ... :<80%RHInput Voltage : DC 3-5VRated Power: =3WNegative ions >/=3 x 106 ions/cm3Effective area: <=12m2Lifetime of motor :>=50000Package Included:1 x ...