I’m far from an expert in any of this but I had to respond to your post about using the aerobika (flutter) after the nebulizer. I recently started connecting the nebulizer to the aerobika and use them both at once. They are made to connect but I’d never thought of it before reading about it here. Besides saving time, I find that it is much more effective in clearing my lungs as I’m using the aerobika for much longer than I used to when I used it after the nebulizer.