I have just started my MAC journey and the pulmonologist I saw yesterday recommended a chest wall oscillation therapy vest to clear the mucous from my lungs, twice a day for ten minutes. Sure beats all those horrible anti-biotic treatments - if it works! He said that Medicare would pay for it. Not sure whether they would buy it for us (those on Medicare) or pay for the rental. It is quite expensive. Since I am a new member, I was not able to put in the link, but, if you're interested, google for chest wall oscillation therapy vest.