Frequently Asked Questions
Is Ozone Dangerous?
The concentration directly hazardous to life or health (IDLH) is 5 PPM DURING 30 MINUTES.
A very pungent odor indicates that you are in the presence of ozone. This odor is perceptible from 0.01 ppm.
This olfactory perception threshold is below the professional exposure limit values (8 hours per day), which are between 0.1 ppm and 0.2 ppm depending on the regulations.
The symptoms observed depend on the concentration.
It could be a simple, temporary olfactory anesthesia (present just above the olfactory perception threshold of 0.01 ppm).
Up to severe lung problems (acute pulmonary edema at concentrations of 9 ppm). “1.5 ppm is the recommended concentration in ozone shock mode, which is six times lower.”
Between these two extremes we see irritating symptoms that cause dry mouth, cough, bronchial hypersecretion, more or less intense shortness of breath, retrosternal pain, and abnormal breathing rhythm.
Does ozone have carcinogenic effects?
No, according to the INRS (National Research and Safety Institute):
The results of epidemiological studies do not allow any conclusions to be drawn that ozone has a carcinogenic effect on humans.
Despite a concentration of 1.5 ppm, which is well below the IDLH of 5 ppm, users or employers are encouraged to use their judgment to avoid unnecessary risks.
The ozone shock must never be activated with the presence of humans or animals.
Ozone Mode !
A visible and severe audible alarm is present during the ozone shock. People who may be close to the disinfection area at a certain point must be warned beforehand that this alarm means they must quickly move away from potential hazards. Gaseous ozone has a potential half-life that is longer than ozone dissolved in water. In practice, however, the gaseous ozone oxidizes everything around it, reducing its half-life to a few tens of minutes. As a precaution, we recommend waiting at least an hour before entering a room that has been treated in ozone shock mode.
Explanation of different types of ozone.
- Stratospheric ozone and tropospheric ozone (commonly known as the “ozone layer”). Most of the tropospheric ozone is an anthropogenic pollutant that is produced by human activities.
- Tropospheric ozone has the same origin and the same effects on the environment and health as stratospheric ozone from great heights
Protects us from harmful ultraviolet (UV) that comes from the sun.
In both cases it is the same molecule, but the influence is different depending on the altitude and concentration in the air.
Ground ozone pollution is the result of a complex mechanism.
Tropospheric ozone is massively formed from “precursor” pollutants under the action of solar radiation (UV). including nitrogen dioxide NO2 released from vehicle exhaust, chimneys, incinerators and forest fires. Tropospheric ozone is often qualified for bad ozone.