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 management by helping users track their lung function ...

A peak expiratory flow rate (PEFR) measures how effectively you exhale. Also called a peak flow meter, this handheld device helps you document the amount of air and the speed at which you can ...

P. S. Burge, C. F. A. Pantin, D. T. Newton, P. F. G. Gannon, P. Bright, J. Belcher, J. McCoach, D. R. Baldwin, C. B. S. G. Burge and The Midlands Thoracic Society ...