@kaykuz. I don’t know how helpful I can be as I have not experienced MAC or NTM infections, to date, with my bronchiectasis. I have had this diagnosis since 2016 and my pulmonologist recommended putting me on the vest due to very little sputum production and a few exaberation episodes. I use it twice daily along with albuterol and 7% nebulizing solution. It takes up time in my day, but from what I read about on this site, I would much prefer this regiment to the medications for treating a MAC or NTM infection as people say it’s very hard on your body. We all have to make our own choices regarding treatment decisions and I wish you the best along your journey.