The Evapolar evaLIGHT Plus in Crystal White is a personal evaporative air cooler with smart control wheel, removable water tank, sleep timer, and full-spectrum LED light. Engineered as a 3-in-1 cooling device, it cools, purifies, and humidifies the air. It offers a sleek minimalist design, sophisticated functionality, and a powerful cooling effect. The evaLIGHT Plus Air Cooler was created to cool down exclusively the personal area in front of you so it doesn't waste tons of energy cooling down the whole room. Powered by unique evaBREEZE technology, the evaLIGHT Plus Air Cooler can achieve a cooling effect up to 50°F depending on the humidity level. Evapolar evaLIGHT Plus is perfectly suitable for sleeping time, resting, traveling, and working. Created as a whisper-quiet personal cooling solution, it's a must-have device for hot sleepers. Portable and USB-powered, it creates your personal microclimate wherever you are. Enjoy the coolness effect as long as it is connected to an electricity source â a socket, powerbank, laptop, etc. Just add water, connect the device to power, and enjoy the fresh air. Control the airflow with the smart wheel and enjoy the fresh air for 6-8 hours. The device also has an LED light that can be adjusted to suit your mood. 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. Simply replace your cartridge every 4-6 months (depending on water and air qualities) to ensure good air quality. Replacement cartridge (item 133792) sold separately.• Chills, purifies, and humidifies• Consumes only 10W• Full-spectrum LED light• Enhanced leakage-proof system• Award-winning, eco-friendly design• Control wheel• Whisper quiet• Removable water tankSpecificationsPower Consumption: 10WCooling Power: 100W - 350WFlow Rate: 49.1 cfmNoise Level: 25-45 dBSize: 7.1" x 7.1" x 7.2"Weight: 45 oz. Water Tank Capacity: 1 liter (34 oz.)Water Refill Cycle: 3-8 hoursEvaporative Cartridge Life: 3-6 monthsCoverage Area: up to 32 sq. ft. in direction of airflowPower Supply: microUSB (5V 2A)Included: Cartridge, Power Cord, Power Adapter Can achieve a cooling effect up to 50°F depending on humidity Easily controlled with the smart wheel to provide fresh air for 6-8 hours Includes removable water tank, sleep timer, & full-spectrum LED light | Evapolar evaLIGHT Plus Personal Air Cooler, Crystal White