However, ozone systems have safety advantages not available with the chlorine disinfection process.
Ozone is generated on-site, thus eliminating transportation hazards.
Also, the generation system can be shut down it an ozone leak develops. In addition to safety precautions against exposure to ozone, protection against noise and electrical hazards should be incorporated into the design and operation of an ozone disinfection system. A study of the health effects of ozone exposure was conducted by the United States Air Force. The reported biological effects range from dryness of mouth and throat, coughing, headache, and chest restrictions at concentrations near the recommended limit, to more acute problems at higher concentrations. These recommended limits for ozone concentration are much higher than the concentrations at which ozone can typically be smelled.