The HoMedics PAC-20 MYCHILL Personal Space Cooler delivers a concentrated stream of cool air where you need it most. The PAC-20 model creates a four-foot cooling area, lowering the temperature of your personal space by up to 12 degrees F. Use it in your dorm room, at the office, on your nightstand, or anywhere youd like to be a little bit cooler. MYCHILL is all natural, environmentally friendly, and uses very little energy. Simply add water and turn it on. It features 2 speeds, an adjustable vent, and Clean Tank Technology, which protects the tank from mold and mildew. If you use a space heater in the colder months, youll love the MYCHILL Personal Space Cooler to combat the heat!