The Evapolar evaCHILL Personal Evaporative Air Cooler and Humidifier is Evapolar’s best-selling personal evaporative air cooler that cools, purifies, and humidifies the air. It has a sleek, minimalist design, sophisticated functionality, and a powerful cooling effect. The evaChill air cooler was created to cool down exclusively the personal area only in front of you. It does not waste tons of energy to cool down the whole room. Powered by unique evaBREEZE technology, the evaCHILL air cooler can achieve a cooling effect up to 44.6°F to 50°F (7°C to 10°C) depending on the humidity level. It is ideal for sleeping time, resting, traveling, and working. Created as a whisper-quiet personal cooling solution, it is a must-have device for hot sleepers. Portable and USB-powered, it creates your personal micro-climate wherever you are. Enjoy the coolness effect as long as it is connected to an electricity source — a socket, a power bank, a laptop, etc. Forget about installation costs, unlike with an AC unit! Just add water, connect the device to power and enjoy the fresh air. Control the airflow with 1 button and enjoy the fresh air for 6 to 8 hours. The device also has an LED light for a cozy atmosphere and is an ideal bedside lamp. Breathe pure and fresh air thanks to the long-lasting biodegradable basalt fibers inside the cartridge. They filter out the dust in the air and retain water for more efficient cooling and humidifying.