A peak flow meter is an inexpensive, portable, handheld device for those with asthma that is used to measure how well air moves out of your lungs. Measuring your peak flow using this meter is an ...
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Peak Flow Meter for Asthma: Everything You Need to Know
By Anjali Srivastava A peak flow meter is a handy, portable device that measures how fast air leaves the lungs. It plays a ...
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