You can use a monitor lung function when symptoms occur.
# Move the marker to the base or bottom of the scale.
# Stand up straight and take a deep breath.
# Place the meter in your mouth while holding your breath.
# Blow as fast and hard as you can for as long as you can.
# Repeat this two more times every few minutes, or as much time as you need to catch your breath.
# The highest number on the scale you achieve is your peak flow.
# Compare your peak flow to normal values chart or your previous attempts.
Top Sellers
Here are some of the most popular, simple to use peak flow meters.
