Cooling power 2500W. 1x Air conditioner. Rotation speed of the cooling fan can reach 7.2m/s, less than 65dB, which can ensure the quality of sleep for you and your family. R410A air cooler with negative ion function to release large quantity of anions which help in the removal of airborne pollutants as small as 0.01 micron such as allergens, pollen, mold, smoke, pet dander, unpleasant odors, dust, and other airborne irritants.