Evapolar is a portable personal device that not only cools but also humidifies and purifies the air around you. The operating principle is very simple: just fill the removable water tank and plug Evapolar in. Within 2-3 minutes the Evapolar cartridge will absorb a huge amount of water. The water then spread evenly over the surface of the cooling pads. When the air circulates through the pads, the water evaporates, which makes the air cool down while becoming saturated with water. The built-in fan helps the cool air spread across an area of 45 sq ft (3-4 sq m) around you. The power control enables you to adjust the cooling effect, creating the most comfortable thermal conditions for you.