What Stands out Ultra-low energy - just 3p per hour of use!Ideal for medium to large rooms up to 45 sqmQuiet cooling great for homes and officesSuper eco-friendly at only 180 WattsSlim and modern designEasy to move it from room to room using the built-in handles and castorsPowerful air throw for a strong cool breeze and spot coolingNo permanent installation or exhaust vent required - simply fill the tank with water/ice and switch it onUse the timer function and set it to automatically switch on or off after a set amount of time The DetailsThis powerful 3-in-1 air cooler is perfect for any time of year. Not only does it keep you cool when it starts to heat up outside it also functions as an air purifier and humidifier to improve the air quality within your room whenever needed.Slim40i is a really powerful air cooler humidifier and air cleaner that doesn\'t require any venting like an air conditioner would do. It doesn\'t need installing either and is ideal for rooms up to 45sqm.Easy operation of all the multiple functions including the three fan speeds humidifier and oscillation modes. There\'s also a handy timer setting that can be used to automatically switch on or off after a set amount of time up to 8 hours so you can have it run throughout the night and not have to wake up to switch it off. You can even take control of the cooler using the remote control that comes suppliedEssential info Air cooler humidifier and Air PurifierEasy to use digital controlsHigh efficiency honeycomb cooling padsRemote control included3-speed fan with oscillation mode40 litre water tank and ice box1-8 hour timerDimensions (L x W x H) 44.4 x44.3 x 124 cmWeight 19.3Kg More info Power 180W / 3p per hourAir flow (at high speed) 4000 m³/hPower supply (V) 200-240Integrated carry handle and durable castor wheelsDirectional louvresSlim Design12 Month hassle free warranty View User Manual . The Techie StuffThe Slim40i is an evaporative air cooler that cools the air by means of evaporation. When water evaporates into the air the result is a mixture of air and water molecules. This chemical change requires heat which is taken from the water molecules resulting in a spot cooling effect the temperature drop. The air is passed through a special honeycomb cooling pad which expands the evaporation surface and improves the cooling effect while doubling as an air filter. The evaporative coolers must be used in rooms or spaces with good ventilation otherwise the room will get saturated with humidity and the effect of cooling will stop.. Evaporative cooling occurs to every one of us perspiration is the way our body reduces its temperature by evaporation when we are too hot..