An icon in the shape of a lightning bolt. Impact Link A peak flow meter is a device that measures how well your lungs expel air. The device is a valuable tool for people with a respiratory condition ...

Peak flow meters are portable devices that are easy to use at home, in school, or on the go. They’re used to measure a person’s ability to exhale air forcefully out of their lungs. If you have a ...

A flow meter works by measuring the amount of a liquid, gas, or steam flowing through or around the flow meter sensors. Flow meter sensors work in different ways, but with the same end goal: Provide ...