Hi Amber,
Can you use Control III, a disinfectant that hospitals and doctors' office use? I use it to disinfect my Flutter and my Microchamber spacer.
Years ago I was lugging bottles of Vinegar (which is not what they recommend to disinfect any more). I had these horrible big bottles all over the place. A respiratory therapist told me to get Control III disinfectant concentrate. You add 1 oz. to a gallon of water, soak either nebs that can't be boiled, Flutter, spacers for me, etc. Then rinse with sterile water. The mixture lasts 2 weeks. Then you make up a fresh bowl again (and cover).
You can get it on line and it's very inexpensive. Just check with your doctor and make sure that this is appropriate for your situation.