Peak flow meter is a 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 important part of managing your asthma symptoms and preventing an asthma attack.
Peak flow meter works by measuring how fast air comes out of the lungs when you exhale forcefully after inhaling fully. This measure is called a "peak expiratory flow," or "PEF."
Keeping track of your PEF, is one way you can know if your symptoms of asthma are in control or worsening.
We carry Peak Flow Meters by Respironics and Invacare