Peak Flow vs. Base Flow Peak Flow: The maximum flow of a stream in response to a rainstorm event. Base Flow: The portion of streamflow contributed by groundwater. As can be seen in the diagram below, ...

Peak flow meters are inexpensive (the average price is around $15 to $20), handheld, and easy to use. You simply blow as hard as you can into the device and it will measure your air flow rate in ...

Flow rate lessens when the airways are blocked. If you notice a significant fall in your peak flow speed, it may be caused by a flare-up in your lung disease.

A peak flow meter is especially useful for people with moderate to severe asthma who require daily medication. It supports effective asthma symptoms tracking by measuring airflow and detecting ...