Hello @gj53 I'm diagnosed w Bronchiectisis and MAC, and I didn't produce much sputum when first diagnosed over a year ago. My percussion vest (inCourage Airway Therapy Vest) was the 1st investment on my journey to better health. I didn't think it did much for the first couple of months but was assured it was loosening the mucus in my tubes. I did a puff on an albuterol inhaler first to open up my airways. Thinking bigger is better I asked my doc for the nebulizer albuterol and couldn't tolerate it either. Made me too jittery. I did start nebulizing every morning w 7% saline solution (moisturizes, thins the mucus,cleanses) following up w the vest. Most days I can now cough up a couple or a few big plugs. The machine is expensive everyone's co- pay is different. Best of luck with your decision. Margie