[Hugh R]

Ionic breeze creates ozone, a respiratory irritant. Now they market them with "ozone guard" a catalyst to convert O3 (ozone) back to O2 (normal oxygen). Studies by the American Industrial Hygiene Association, of which I'm a member, show that the 03 levels are not high enough to brekdown smog (NOx) or other contaminants before they give respiratory discomfort from the O3 that the unit creates. Rather, they create your own little smog alert in your yours. By a HEPA (high efficiency Particulate airfiltration) system instead.