Optimus F-0702 7-Inch 2-Speed Personal Adjustable Clip-On Fan, White

When the manufacturer says "whisper quiet", they mean "whisper quiet if you've lost the upper half of your hearing". I bought this fan to use near my desk which has a rather-noisy computer already, however this fan is the loudest thing in the room. Even the "low" setting has a solid whine/hum, unfortunately. A personal fan needs to be quiet enough to not be distracting and annoying a full 8 feet away.

One other tricky bit: The base attaches and clicks in once insecurely, but then must be twisted and popped in (much more securely) a bit past the first position. If your fan is falling apart when you try to turn it, check that.

I bought this item three months ago, to sit behind my iMac for cooling purposes. Within the first week, the fan seemed to stall when ever it was started. I'd have to keep flicking the switch on and off to get it to work. Then, this week, the fan stopped working altogether. All the connections are fine - the motor burned out. If you buy this fan, be prepared to buy another one in a month or two.

I've purchased a handful of desk fans over the years. None of them come close to the power and volume of airflow that this little model has. If your prime criteria is coolness, this is the best desk fan you can get under $15, from my experience.