Uses nearly 75% less energy and costs 50% less than an equivalent cooling capacity portable AC unit. Proprietary design blows evaporatively-cooled air at high velocity, cooling the air even far from the unit. Fill the 24-gallon reservoir for stand alone use or hook up to standard garden hose for continuous use. Automatic shut-off prevents pump damage. Aluminum/ABS construction. 33½"W x 54½"H; 225 lb. Made in USA. Truck delivery.