CindyinSD
All will be well, and that will be well is well.
I think reverse osmosis water will work, at least short term. I searched this. It appears that the concern is that RO water still may contain some dissolved solids that could, over time, cause a mineral scale build-up in the machine. If you're worried about this, call your CPAP supplier. We happened to have a lot of distilled water on hand because we also use it on our whole house filter (icky red well water), but I think in this case also, any potable water will do in a pinch.I need one I guess to make my own distilled water