@sweethighland Yes I was so excited and surprised when my dr said no MAC had shown up on my tests!!The Pari is expensive unfortunatly but a great machine, I have had mine for along time now , but think I bought it of the Pari website. I use 7% saline 2X a day , I also do the Huff cough technique and the autogenic squeeze, you can look these up online. The Pari eflow is such a compact, quick, easy , long lasting machine to use and uses no tubing which is great, I definatly recommend it, especially now!