Clips from Wikipedia about ozone (O3)
Most people can detect about 0.01 μmol/mol of ozone in air where it has a very specific sharp odor somewhat resembling chlorine bleach.
Exposure of 0.1 to 1 μmol/mol produces headaches, burning eyes, and irritation to the respiratory passages.[6] Even low concentrations of ozone in air are very destructive to organic materials such as latex, plastics, and animal lung tissue.
Although low levels of ozone have been advertised to be of some disinfectant use in residential homes, the concentration of ozone in dry air required to have a rapid, substantial effect on airborne pathogens exceeds safe levels recommended by the U.S. Occupational Safety and Health Administration and Environmental Protection Agency.
The Canadian Center for Occupation Safety and Health reports that:
"Even very low concentrations of ozone can be harmful to the upper respiratory tract and the lungs. The severity of injury depends on both by the concentration of ozone and the duration of exposure. Severe and permanent lung injury or death could result from even a very short-term exposure to relatively low concentrations." [45]
I am thinking that I really don't need any ozone generators in my life.
As I recall, thypically, when a firm uses an ozone generator to de-scent a car or room, nobody is allowed to be inside there until the room is evacuated of ozone.
ChuckC