Ever been to the doctors and they’ve asked you to blow into a funny little tube with numbers along the side? This is a peak flow meter, and a peak flow meter is a necessity for asthmatics. In summary, it’s a device measures how quickly you are able to expel air from your lungs by blowing as hard as you can into this small, handheld device. These can be bought from pharmacies for home use or can be available via prescription as well. Want to know the importance of a peak flow meter? Let’s start from the basics…

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