Mobile air cooler: we adopt the theory of "wet curtain "cooling principle,delivering the water to the wet curtain through pump. Cool air is generated when the water passes through the wet curtain and mixes with air. The cool air will be send to the space again by the fan. And the wind direction can swing around. external dimensionVoltageMotor powerWind directionCooling rangeApplicable areaAir volume620*450*1200220V120Wswing around3°-5°50m²3500m3/h Mobile air cooler: 1.cooling, humidifying and purifying 2.water-sprayed humidifying,collect undersirable odor 3.base on wet curtain cooling prinple, no fluorine pollution 4.automatic left-right swing,manual adjustable for up-down winddirection 5.three kinds of wind speed available :high, medium, low speed. 6.installation of casters to facilitate movement and placement