Review on Lifesmart EZcool Single Port Portable Air Cooler - Indoor/Outdoor, Ideal for 250 Sq Feet by Reynaldo Tong

I wouldn't say it's completely useless. The problem is that he advertises the possibility of cooling 250 square meters. ft. room. I was trying to use this in a mini office that is about 6ft x 10ft. 60 square meters. It was a dry day. I poured water. Make sure the cap was nice and tight. The only place it was cool was 3 feet in front of the nozzle. It blows out a mist of water that settles on your skin and the air that passes through evaporates and cools your skin. It's no different than splashing yourself with water and standing in front of a fan. As for cooling the indoor air, it might have lowered the temperature by a degree or two, but it's also made it a lot stuffier. So it actually got a little warmer and more uncomfortable. If you're looking for a short-range evaporative skin cooler, Revain has a dozen products that sell for a third less. Or buy yourself a good fan and atomizer.