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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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 ...

This is a preview. Log in through your library . Abstract Measurements of the forced expiratory volume in one second (FEV1·0) and the peak expiratory flow rate (PEF) were made in 99 non-smoking female ...