O3 -Ozone has an 8 hr EPA exposure limit of 50 ppb . Ionic Breeze put out 50 ppb. In a room closed off on a nice day with out any venting im sure levels would rise , to what level, I have no idea as 03 will dissipate in larger rooms. There are many published group medical studies concluding O3 aggravates lung problems such as Asthma. A recent study published in Reuters related O3 to "sudden complete heart failure", not death, but weakening.
O3 is an oxidant, steel rusting, rubber deteriorating, are examples of oxidation. Sure the units dissipate their O3, but you are adding a proven lung damaging chemical to your living space, is this what you want?
I used to live in a small apt and had 3 units on air filters running ' Bionaire" and I believe had the negative affects associated with O3. And still suffer but not much since I moved and junked my 3 units.
There is allot of research done and published as to negative effects relating to health issues, you can Google it. The fact the EPA has a 50 ppb 8 hr limit should awaken you immediately to O 3 s potential for causing permanent harm.
The real known issue is of O3 generators used for smoke-smell removal that are known to output 300-500ppb O3, or multiple small units such as what I had. I called sharper image and at first they gave me a 65ppb output, but later in writing backed off that claim. A lung specialist I talked to said said " why add something that may pose a risk".
These are sold only for profit, thats it.
The Ionic breeze even at say 50 ppb was rated the worst of all air cleaners by Consumer Reports they tested, in a large group test. You can find their article online.
As the medical community becomes more aware by controlled group scientific testing and with tight house construction of todays houses, I predict O3 generators like the Ionic breeze will be shunned as people become aware of their long term exposure hazards. Your used unit you say can put out so much it bothers you, well at that point it may very well be putting out truly unsafe high levels that will cause you damage over the long run, I personally junked mine all 3 and returned the Ionic breeze.
The point is why add something , even in small doses that is a proven irritant and lung damaging chemical.
Cigarettes, Second hand smoke, asbestos, CCA treated wood ' Banned" , etc etc etc were all once thought safe, O3 is not safe.
If you want some articles Email me I may have saved a few.
Junk those units.