Serving dual functions of a personal air cooler and an air humidifier, this device is an essential all year round. It provide a cooling respite in hot summers and humidify dry air in autumn and winter. depending on the chosen speed - Perfect for homes, offices, or outdoor picnics! [700ML Large Water Tank & Long Lasting]With a 700ml sealed water tank, the air conditioner portable can work continuously for 8-10 hours when filled with water, avoiding frequent water refills, and automatically switching to the natural wind when the water runs out, so you don't have to worry about falling asleep. The water level window allows you to check and control the water level at any time. The top water tank design increases the convenience of adding water and prevents water leakage 4-inch six-blade flexible fan blades, maximum wind speed 4.0M/S. 700ML large capacity water tank, one tank of water can be used for 10 hours. Three wind speeds, up and down adjustable wind, two levels of atomization The