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Peak Flow Meter

A peak flow meter for asthma is like a thermometer for a fever. It is a simple, portable device, which helps you monitor what’s going on inside your lungs by measuring airflow. Asthma patients blow into them quickly and forcefully, and the resulting peak flow reading indicates how open your airways are. If used appropriately, a peak flow meter can be a valuable tool by evaluating how well your asthma is being controlled. The peak flow meter can be used to find out if there is narrowing in the airways hours or even days, before you have symptoms of worsening asthma. By taking action early, you may be able to stop the episode quickly and avoid a serious episode of asthma.

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