An air cooler is the more appropriate name for this. It was a great idea, but it needed to be a lot more rugged. It would appear that the slightest drop on the floor or knock with a book on your desk would destroy the weak fan. 4 Things wrong with it:- Should have come with more water bottles so that you can switch.- The fan is VERY weak.- Limited 30 day warranty (or 45 or 90 day). I understand now why the warranty is so short.- It does NOT come with a power cord. Had to spend about $17 @ radio shack to get the cord and the correct adapter.I plugged another adapter (a bit overrated) and the speed of the fan increased significantly. But after a day or even less than that, the fan burned out. But the fan wasn't even blowing that hard anyway to begin with :(Just save your money and get a REAL air conditioner. That's what I ended up doing.