COOLING: an air cooler works by pulling air through the back of the unit through wet pads that add water vapour to cool the air as it's blown out through the fan. Suitable for rooms up to 12m?. ADVANCED SILVER i AIR PURIFIER: create the environment by cooling warm rooms, humidifying dry rooms or purifying the air to make any room comfortable. Requires a window or door to be open to ensure a constant airflow. ADJUSTABLE MODE: 3 fan speeds, 4 hour timer seperate ice pack for enhanced cooling. OSCILLATING LOUVERS: distributing a even flow of comfortable air around any room. PORTABLE AND EFFICENT: the air cooler can be easily moved by its castors or inbuilt carry handle, Dimensions H780 D330 W300 Free Devola LED Keyring.