Yeah there are certainly things about it that more care is needed for. There are other factors involved such as sensitivity to things like mold that can cause other challenges unnecessarily and if we breathe in something like Ozone, it's combating the mold and that sends signals to other parts of the body for them, but if I don't have those challenges then it doesn't affect me.
So the thought process from the company that sold it could be that people who are not sensitive to some things benefit from ozone.