Both are correct. Ozone in very strong concentrations can kill plants and irritate a person s lungs, eyes and nose. The EPA sets ozone standards of .12 ppm and many metropolitan areas repeatedly exceed this standard. The OSHA standard for ozone in the work place is 0.1 ppm for an eight hour day. The difference between good ozone and bad ozone depends strictly on where it is and how it is being used.
Ozone is a very effective disinfectant and air purifier.
Ozone can cause health problems in high dosages. There are those who will take a shallow approach and see only the negative words, ozone can cause health problems , so it must be bad without considering the dosage. Of course, we all know that with the proper use and controls, fire has benefits far outweighing its negatives, and the same is true for ozone. With this information, testing was conducted utilizing passive ozonation in homes, food processing facilities, medical facilities, and offices. The interesting point is that at .02 ppm rooms can be safely and legally occupied.