- 1). Sit in a supported upright position. Make sure the indicator tab on the spirometer is set at zero.
- 2). Take a deep breath and place the mouthpiece in your mouth and seal the tube with your lips. Exhale as hard as you can and blow out as much air from your lungs as possible. Or to assess inhalation, first blow all the air out of your lungs. Form a seal on the blow-tube with your lips and breathe in as much as possible.
- 3). Remove the tube from your mouth and look at the indicator position. Record the number of milliliters then return the indicator back to zero. Repeat this three times.
- 4). Add the total milliliters from all three trials together and divide the total by three. This average represents your breathing ability.
previous post
next post