Small fan that can cool air up to 30F. This revolutionary evaporative cooling fan is the closest thing to a hand held mini air conditioner. Use it outdoors or keep it indoors as a desk fan. Provides gentle cool breeze. Uses evaporative cooling technology. Add water to soak the cooling filter. Ambient air is forced through the wet cooling filter and cools down. Works best in dry and hot climates. Fully portable and mobile, take it literally anywhere you want. Rotatable turbine wheel allows adjustment of the cool breeze of air. Humidifies air - makes breathing comfortable and alleviates allergies. Variable power control. Stands by itself on any flat surface. Comfortable adjustable leather strap. Ergonomically designed, user-friendly and easy to use. Environmentally friendly. 4xAA batteries allow 5 hours portable operation. Connect to USB (cable included) or home socket power (sold separately) for continuous operation. Includes dedicated 60ml water bottle, USB cable and 1x cooling filter. Best for hot flashes, home and office use, camping, outdoor sports, watching the game and more. Mere 12oz with batteries loaded. Cooling filter life expectancy: 1 year. Patent-pending. Version 2.0.