The OEM Automotive Tools Hessaire 2200 CFM 2 Speed Evaporative Cooler, No. HESMC37A, constructed with three media panels, this machines is able to cool up to 750 sq. ft. on a 10.3-gal tank. The hi-density media provides 80 percent more evaporation surface compared to regular density media, which means higher evaporation efficiency and cooler temperatures. The cooler also offers a three-speed variable motor with energy-efficient electronic timer. Weighing in at only 45 lbs and resting on four large, durable casters, the HESMC37A was designed for small shops or for cooling single bays. The USB charge port allows users to charge small electronic devices such as phones and tablets.