Oh wow, you definitely have to be careful with those. I have an ozone cleaner for my CPAP machine and they are very clear that you have to use it in a room that is at least specific dimensions and you have to push air through it after the cleaning to be sure all the ozone is out of the airways. They also warn that the ozone can break down some of the plastic parts if you let it go too long, so you have to be careful of that too. It's interesting how things that have so many benefits can also cause a lot of issues.
Yeah ozone is really impressive when it comes to killing mold and things of that nature. Sucks you have to use a cpap! It was a lesson learned for me for sure!
I'm still getting used to it. Running my ozone cleaner today. My wife mentioned that this is the first time she has actually been able to smell the ozone smell.