Your personal best PEF is important because it is the number to which all of your other peak flow readings will be compared. Your asthma action plan, developed along with your asthma doctor , is ...

OMRON light Personal Peak Flow Meter is used for accurate monitoring of Peak Expiratory Flow in L/min. The PFM20 enables an easy, user-friendly therapy management for doctor and patient similarly.

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 ...