@woot - My old workhorse Pari Vios (the big greenish neb Medicare pays for) empties a 4ml vial of saline or levalbuterol in 8-10 minutes as long as I breathe deeply. I feel the increased output penetrates my lungs better as well. My little portable Innova takes 20 minutes each to do the same. After years of trial and error, I have decided to foresake portability and quiet for speed & noise - I'm far too impatient to sit still.
Sue