Many apps blow. This one blows back.

Beat the heat (or pretend to) with Pocket Fan, the handheld electric fan simulator. Just press the power button and imagine the cool air hitting your face.

Pocket Fan also works great as a noise generator or sound machine.

Disclaimer: Android does not currently support blowing air through the device's screen. Any cooling effect you experience while using this app is purely coincidental.

Enjoy rising bubbles and a discreet bubbling sound for your relaxation or deep sleep that you can also set as your live wallpaper on devices running android 2.1+ and even interactively rearrange the fishes touching around. Fight stress and relax with this peaceful and untroubled theme.
Now all advertisements mentioned below get waived away after just ten days of use ! :) plus many fixes and improvements.