Re: generating negative air ions

From: Harold Ryan (hryan_at_chartermi.net)
Date: 02/13/05 

Date: Sun, 13 Feb 2005 00:06:09 -0500

Hi Charles:
Ions are just oxygen atoms with a missing electron. They are formed during
a spark occurrence or in the presence of a high electric field. Ozone is
another word for ions that you can smell. So you can't avoid creating
ozone. High voltage transformers are required to create voltages between 5kv
and 10 kv. Air purifiers are designed this way like the ones hanging from
the ceiling in a bar. If you want to just make ions, all you need is an
oscillator (555 timer from Radio Shack) and an automotive ignition coil that
has the internal drivers inside.

Harold

"Charles P Lamb" <clamb@acm.org> wrote in message
news:pfudnVbd859_0pjfRVn-hQ@comcast.com...
>I would like to make a generator of negative air ions. I know how to make
>a
> 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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