Liuyuan&reg; New Version Mini Portable Leakless Bottle Cap Air Humidifier with USB Cable for Office Home (White) New version air humidifier is a creative,portable version of a standard humidifier. Leakless design, fastening on the bottle, real mini Remove the dust in the air molecules,Easy to operate with the USB cable Reduce radiation by placing it beside the computer Moisturize the air in a building or room by dispersing a water mist