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Peak flow meter use - series


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Peak flow meter use - part five
Peak flow meter use - part onePeak flow meter use - part twoPeak flow meter use - part threePeak flow meter use - part fourPeak flow meter use - part fivePeak flow meter use - part sixPeak flow meter use - part seven
Peak flow meter use - part five
Blow out as hard and fast as you can. You want to move the marker as far as you can with your breath, so concentrate on exhaling forcefully and quickly.



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