Negative ION Generator without Ozone?

I am looking for negative ion generators that do NOT produce ozone. On Amazon, a search for negative ion generators turns up only products that
create ozone too. Does anyone have suggestions for a pure negative ion generator that does not create ozone?
--
W



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On 09/10/2014 06:01 PM, W wrote:

Even if they don't advertize it, almost all negative ion generators will produce ozone due to the way they're constructed. Here's two possible methods to fix this:
1. Catalyze ozone exiting the generator
Pass the air exiting the generator through a filter containing a catalyst that will break ozone down (2O^3 -> 3O^2). You can read a few papers here:
http://www.ce.utexas.edu/prof/siegel/papers/conference/cros_PRM_HB_141.pdf http://cmgm.stanford.edu/pbrown/protocols/The_Ozone_Annihilator.pdf
It looks like the best choice of catalyst materials is either manganese oxide or activated carbon. However, its possible that these filters could also deionize the air.
It might be a better choice to have an ozone-catalyzing machine in the same room to mop it out of the ambient air instead of directly in line with the ion generator. There's probably commercial units meant for this on the market.
2. Create an oxygen free air-intake
This is a bit more out-there, but if the gas being ionized doesn't contain oxygen then ozone probably won't be formed. Something worse might be however, you should check the chemistry for whatever gas you choose.
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