Review on TESECU Mini Personal USB Air Cooler: 3-in-1 Table Fan for Home Office, Portable Evaporative Cooler with Ice Tray, 3 Speeds, 7-Color Light (Black) by Alexandra Johnson

You have to keep in mind that this is not an AC unit. This is a cooler. I'll have to tell myself that when I've used it. I live in Texas and it's hurricane season (after the dust invasion) so it would be helpful to have a little cool down when the power goes out. First, it comes with its own ice cube. Tray. You can also use very small ice cube trays, which you can find here. Just using water and wetting the foam filter will only get you a few degrees cooler. With ice (not just water) in the tank and a slightly frozen filter you can help drop a few more degrees, so yes you get cooler air. next My big problem was the fan, I swear it's the same one used for my computer. So it's pretty unsuitable. I put the fan right in front of the block. This helped move the colder air, cooling it down a bit more and pushing the cold air further. I'm going to look at a solar battery and USB fan to use when the power goes out. It's perfect? no, but neither is it the $100 evaporative cooler you can find here.