Simply fill this Arctic Air with water ,plug into any standard wall outlet or lights?port ,then turn it on. This powerful yet compact space cooler pulls warm air from the room through it’s evaporative water filter to fill any space with cool ,clean , comfortable air fast,? it has? 7 color LED atmosphere lights, can be used as a night night sleep lights function.?The process of using its mute, refrigeration and environmental protection without freon.?It has? Built in water tank, that can last? for 8 hours? once it’s full. And a? USB plug adapter or USB socket. Suitable place: offices ,living rooms, kitchens, bedroom, basements and more. It’s cools humidifies and purifies .Simply fill this Arctic Air with water ,plug into any standard wall outlet or USB port ,then turn it on. This powerful yet compact space cooler pulls warm air from the room through it’s evaporative water filter to fill any space with cool ,clean , comfortable air fast,? it has? 7 color LED atmosphere lights, can be used as a night night sleep lights function.?The process of using its mute, refrigeration and environmental protection without freon.?It has? Built in water tank, that can last? for 8 hours? once it’s full. And a? USB plug adapter or USB socket. Suitable place: offices ,living rooms, kitchens, bedroom, basements and more. It’s cools humidifies and purifies