-> Chemically, ozone is a powerful oxidiser it's used industrially as a
-> bleach, it's toxic.

 And in my Younger uears they had Home Units that "Freshened" the Air.
After they found out that Ozone being breathed was not exacticaly not
good for you sales dropped off. 
Kinda like in my quite young years people used to pay money to sit in
"Radon" mines by the Hour as it was reportedly Good for your Health.
Another Snake Oil Cure that turned out to be a Bad Idea. :-)  :-)
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