I got the wellness (green) one. I haven't used it much yet but I think it might help as it makes your chest feel a bit stronger after a few breathes. Although it's best to only use it when you are having good days. After a couple of weeks of daily use some people claim it has made a big impact. We'll see.
Have been reading Readers Digest Allergy and Asthma Relief from the library which is edited by various chest consultants and there were positive remarks about Powerbreathe. I have been using it myself for a while and feel that it is helping to strengthen my respiratory muscles and regulate my breathing.
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