Portable air cooler ,Portable evaporative air cooler GREEN-Your Reliable Partner for Evaporative Air Cooler Advantage of household&business evaporative air cooler1. Less investment, efficiency.2. Less consumption, 20-40 square meters per hour below one degree electricity.3. Send the cold wind quantity per hour of 3000 cubic meters, wind pressure is big, Max. Air Flow Delivery Distance is 8 mete4. ...