I tried it but it I found I needed to use rescue inhaler more than usual. I have COPD related emphysema. 6ltr.
Tanks, 5ltr Concentrator.
Don't need it after a couple minutes when I lay down night. Diagnosed 8 years ago. Progressively worsens, I qualify for lung transplants but decided to opt out. Just trying to find some kind of relief. Taking that nasty Prednisone 10 mg., Incruse inhaler &BREO ellipta. What a journey.