The OEMTOOLS 23975 Variable Speed Evaporative Cooler is designed for quick and efficient cooling. The 0.33hp fan pushes the cooled air at 8,246 CFM into the surrounding area—cooling spaces up to 1,291 square feet. This unit is outfitted with a durable, high performance cooling pad and air swing function to efficiently circulate airflow. The unit connects directly to a water source and will hold up to 15.8 gallons of water.