TV big picture can generate negative air ions. You just turn on your TV all night long. It works.
I would like to make a generator of negative air ions. I know how to makea
high voltage power supply but I need to know more about what happens at
the
emitter. How do I avoid also generating ozone? Is there some optimal
> voltage for this? I understand that the emitter should have as sharp an
> edge as possible and that it is liable to oxidation.
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