I was a smoker for 40 years and have copd. Nothing fixes copd however I did give up smoking successfully and now use electronic cigarettes. As a result my breathing is much better. Last month I had a test at the hospital and they had to stop the treadmill in about a minute. This month I had to go back for another test and was able to do the treadmill for 30 minutes with no break. This is with only 1 month vaping instead of traditional cigarettes. I get more housework done and am in much less pain . Plus my home smells cleaner I smell cleaner I do enjoy more life since switching to vaping. I even went to the park with my grandchildren. I do hope to have more days like that. Electronic cigs are not a cure for copd but I do feel they are much better than traditional cigs. Happy vapes -Trisha