★Our Personal Space Air Cooler offers three-in-one functions for cooling, humidifying and purifying and adjusts for 3 levels of fan speed. It gives you the choice of 7 LED light colors, serves as a perfect nightlight, and is ultra quiet when in use. Our air cooler protects the environment while cooling and purifying the air since it does not use Freon. TIPS: 1. Keep personal space air cooler balanced; avoid tilting air cooler to prevent water leakage. 2. Add purified water or ice cubes to avoid impurities affecting the cooling function. 3. Please run out of the water every time to avoid that the water tank left dirt. 4.Don't add more than Three-fourths of the water in the tank, otherwise it will cause water leakage. ★Specifications: Set includes: 1 personal space air cooler, 1 USB power cord, and an instructional guide Color of the device: White LED light colours: 7 LED light colour options Dimensions: 6x6x6.7 inches (16x16x17cm) Capacity: Up to 8 hours of cooling ★Personal space Air Cooler portable air conditioner fan USB small space evaporative mini Air Conditioners swamp cooler air cooler humidifier Desktop Cooling Fan 7 Colors Nightstand cold air cooler for Office Home bedroom kitchen Outdoor car Travel Air Personal Space Cooler .