Mini Air Purifier 1)Specification:12'' 2)Powered:by AC/DC adaptor provided,2-speed silent operation. 3)Streamlined cosmetics Mini Air Purifier 1)Specification:12" 2)Powered:by AC/DC adaptor provided,2-speed silent operation.3)Streamlined cosmetic4) Meet the demand of portable convenience5)Can be widely used in many places, such as in office, meeting room, hall, bedroom and etc. MINI AIR PURIFIER