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 ...

A peak flow meter is a user-friendly, portable device that helps measure the ability of the lungs to expel air. It estimates peak expiratory flow rate which is a measure of how rapidly air can be ...

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Please provide your email address to receive an email when new articles are posted on . This study included adults in Nepal, Peru and Uganda. Discriminative performance improved after adding ...

I have contemplated this issue on a personal level this year. My son recently completed his first T-ball season which began in a cooler-than-usual spring. He is an athletic 6-year-old with seasonal ...