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Peak Flow Meters

Peak Flow Meters

Three types of peak flow meters

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A peak flow meter is an inexpensive, pocket-size device that measures peak expiratory flow (PEF), or how much air a person can breathe out. To measure PEF, the person takes a deep breath and then blows into a tube on the peak flow meter as hard and as fast as possible. This can be done at home.

Peak flow meters come in many shapes and sizes.

By Healthwise Staff
John Pope, MD - Pediatrics
Lora J. Stewart, MD - Allergy and Immunology
Last Revised March 14, 2013

Last Revised: March 14, 2013

Author: Healthwise Staff

Medical Review: John Pope, MD - Pediatrics & Lora J. Stewart, MD - Allergy and Immunology

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