4-in-1 Industrial Evaporative Air Cooler Fan with 12 Gallon Tank and WheelsOverview Multifunctional air cooler can serve as fan, humidifier and air purifier Ice cubes and water can be added to the tank for cooler wind 45L large water tank keeps continuous cooling for 24 hours 9740 cfm airflow and cool up to 1800 sq. ft 8. 3m s maximum wind speed 3 wind speeds allow you to adjust according to your needs 100Oscillation angle provides air supply to broad coverage. 210W evaporative cooler is energy saving and environmentally