I can remember the first home movie projector I ever saw.
When it ran, there was a peculiar chemica odor, apparently related to some arcing somewhere in its innards. The owner said it was ozone I was smelling. Maybe that is what was meant by "electrozone".
Here's URL with a lot of information about ozone, scroll about a quarter of the way to D: which says no viruses of
bacterian are resistant to ozone. So a dental crown that might be damaged by other agents could be sterilized with
Ozone. I suspect it might also oxidize odor causing substancws.
http://www.deltamarineozone.com/ozonefacts.html