asmaPLAN+ Peak Flow Meter

Works great. Now I can measure my improvement or decline to see what works and what doesn't work so well.And no batteries either, cool.

Same quality as you'd get from the pharmacy, except cheaper if you don't have insurance.

My elementary school asthma students find the long thin tubes easier to blow into and more controllable for them because of smaller mouths. However, they are more expensive

works like a charm, great indicator of lung capacity.

Works well so far!

Thanks its great.

Circular mouth piece makes peak flow difficult to perform accurately and consistently. I wish I would have bought one with oblong/rectangular mouth piece