Medically reviewed by Daniel More, MD A peak flow meter is used to measure your peak expiratory flow rate (PEFR). PEFR describes how quickly your lungs expel air during a forceful exhalation after ...

A peak flow meter is a handheld device that measures airflow rate and can help those with respiratory conditions like asthma monitor their condition.

PEFR stands for peak expiratory flow rate. It's a test that measures how fast you can exhale. Learn more about PEFR, why your doctor may suggest this test, how to prepare, what to expect, and ...

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 ...

A peak flow meter plays a vital role in effective asthma management by measuring peak expiratory flow, the speed at which air leaves the lungs. Its benefits include:- Early detection of airway ...

SAN FRANCISCO — Physicians can use peak expiratory flow as a first-line tool for assessing variable airflow limitations among patients with asthma, according to a poster presented at the ...