Step 1
Blow out every last bit of air out of your lungs
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& blow out a little bit more!
Step 2
Do Not Breathe Yet
Step 3
Put spirometer in your mouth
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Step 4
Suck in as much air as you possibly can with Spirometer in your mouth
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Repeat During Every Commercial Break
while you watch T.V.
while you watch T.V.
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