Keep the air around you cool inside and outside your home. With the Hessaire Portable Evaporative Air Cooler, you can stay cool inside your home, out on your patio, or at your campsite. Just plug it in and you're ready to chill.This air cooling system cools warm, stale air with natural evaporation. As the water inside the swamp cooler evaporates into the air circulating through the cooling system, the air lowers in temperature. The MC18V air cooler can cool areas as large as 500 square feet. The fan draws air in and circulates it back out at a rate of 1,300 cubic square feet per minute. This portable swamp cooler has a 4.8-gallon water reservoir that you can fill through the cooler's manual water fill or through your garden hose connected to its water hose adapter.This evaporative wet air cooler is ideal for areas with low humidity since water must be able to evaporate easily. The 2 fan-only settings, 2 evaporative settings, and 1 pump only setting allows you to adjust to the perfect temperature. This Hessaire Indoor/Outdoor Cooler Humidifier moves where you need it thanks to its lightweight design, heavy-duty wheels, and convenient handle.