peak flow meter

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peak flow meter

n.
A portable instrument that detects minute decreases in air flow, used by people with asthma to monitor small changes in breathing capacity.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
A Mini-Wright peak flowmeter and diary card were used for PEF monitoring.
There are movie clips that teach such things as what happens in an asthma attack and how to use the peak flowmeter. The website is subdivided into areas for parents, for teens, and for children.