I have an ozonator at home, which I bought because of Huldas recommendation. What I'm wondering is why she is recommending it. She is recommending the regular cheaper ones, but should at the same time have noticed through her syncrometer tests that it doesn't work then? So then it was a waste of money really? I read somewhere that you have to ozonate for 2!!! weeks for full strengh with regular ozonators. Don't think the machine can handle that(Tools for healing product).