The working principle of the air cooler: It uses the principle of water evaporation and heat absorption to cool down. It has been widely used in our daily life. When we stand on the beach, we feel very cool. When water is applied to the surface of the skin, it feels cool as soon as it blows. This is water evaporation. In the process of absorbing the heat in the air, the air temperature drops. The cooling principle of the air cooler is to use this natural phenomenon to combine high technology with direct evaporative refrigeration technology to develop a set of cooling, ventilation, energy saving and environmental protection. All-in-one air cooler. Air volume:22000m³/h Application area:120-200㎡/set Power:2.2KW Voltage:380V/220V/Customized Frequency:50Hz/60Hz Fan type:Axial Flow Fan Water consumption:25-30Kg/h Noise:80(dB) Outlet dimension(L*W):670X670mm Dimension( L*W*H):1080*1080*1150mm