The Lontor Mist Rechargeable Fan is a unique fan designed to use water to make the air from the fan cooler. This provides you the coolness of the air conditioner. The good thing is that it is rechargeable and it keeps supplying you with cooler air even when there is an interruption of electricity. With its 12V rechargeable battery, you are assured of up to 7-8 hours of comfort when fully charged.