I have just read a post concerning a flutter device for the removal of phlegm and mucus. I am considering getting one myself but not because I have phlegm or mucus but because an ad that I recently saw stated that they are also good for exercising the lungs to make them stronger. Has anyone bought one for that reason and do they a see an improvement in their breathing? Thank you for any info that you can give me as my shortness of breath is getting increasingly worse.
Also, has anyone ever tried a vibrating belt or another such device for improving lungs?