Thanks Sue, I do get most of airway clearance with exercise. I walk for an hr and then do yoga for and hr. And the gunk, the heavy dense stuff comes out. Then I nebulize with 7% saline and budesonide .3%. The nebulizing seems more like a clean up clearance. First with a bit of gunk, then towards the end, white bubbles. I do have a question. Do you think that MAC can be cleared with just the use of nebulizing or does one have to get on the big three. So far, it just mucus clearing for me and I dont seem to increase the bacteria count in sputum samples. And in a recent CT scan, no increase. Hal