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 vital role in asthma ...

A peak flow meter is a simple, small, hand-held tool that can help you maintain control of asthma by providing a measurement of how well air moves out of the lungs. After blowing into the device, the ...

The peak flow meter measures the fastest speed at which you can blow air out of your lungs. During an asthma episode the windpipes begin to narrow slowly. This change can be measured with a peak flow ...