I rediscovered this recording of an oscillating fan I made a couple of years ago and realized it's kind of hypnotizing. With stereo speakers, you can really hear the fan rotating back and forth. Also, I've received requests for fan sounds with more motor noise, and I think this fits the bill. The rhythmic, soothing white noise will help block out distracting sounds. Use it to get you in the mood to focus, study or clear your mind so you can fall asleep.