? 3-in-1 Air Cooler?The compact personal air cooler was designed with refrigeration, humidification and air purification function which allows you to creat a personal comfort zone. ? 3 Gear Wind Speed ?3 gear wind speed for your choice,the fan speed can be adjusted among low, medium, high according to your demands,creat your own personal cooling zone. ? Low Energy Consumption?75w portable space cooler is environmentally friendly and uses no ozone-depleting refrigerants and low energy consumption. ? Evaporative Air Cooler : Based on the natural water evaporative technology, you can add Water in the water container, passes it through a wet filter, the fan blows out cooling wind to cool you down instantly. convenient use and environmental protection(Freon-free). ? Less Noise and Portable:Quietly send cool air, liberate your sensitive ears, let you work with peace of mind during the day, and sleep peacefully at night.