@wsbme74 Thanks for your helpful post about the aerobika. I wondered how a bunch of plastic parts could wear out in 6-12 months. When I meet with the RT I'll be sure to bring mine along for evaluation. Maybe they can show me how to tell if it's worn out. I certainly can feel the difference between the old and new one, as the old one feels beaten up a bit.

Good tip on the manometer, which might serve as a motivator when using aerobika/nebulizer/compressor.

Did your RT friend say how often to replace the tubing? I've read anywhere from 1 month to 6 months.