This utility will help you to measure the capacity of your lungs.
Spirometer uses the microphone of the iphone, so you must be in a quiet zone.
Blow in the microphone to elevate the ball above the red line and start incrementing the counter.
The counter stop incrementing if the ball falls below the red line.
This application works with the iphone and iphone 3G. it will works with the ipod touch with
a external microphone.
This app is not a real spirometer and must be used only for entertainment purposes only.