Peak Flow monitoring technique

Hello!

I have another question.

When checking peak flow, do I:

a) Blow into the meter with all of my breath & effort, using every muscle that will assist in huffing out my breath.

b) Blow into the meter with my chest & diaphragm, using the muscles that typically are used when breathing normally.

If I do (a), I get a good 50 higher than if I do (b), but (b) seems to give a more ""honest"" result, linked to how my chest's feeling.

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answer is a

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Thanking you most kindly!

That's what I've been doing - and my PF is above predicted most of the time.

Cheers again!