Ozone industrial hygiene standards:

1#: International Ozone Association: 0.1 ppm, the contacting time 10 hours;

2#: USA: 0.1PPM; the contacting time: 8 hours;

3#: Germany, France, Japan: 0.1PPM;

4#: China: 0.16 mg/m³

The home ozone disinfection ozone leakage outside the cabinet must not exceed 0.2mg/m³ (1.5 maway),

disinfection residual concentration after a period not more than 0.2mg /m³;

Animal tests showed that the ozone concentration of the starting point of toxic 0.3ppm, and people can smell of ozone concentration 0.02 ~ 0.04ppm;

According to the toxicity of ozone on pulmonary function test results, the 1.5 ~ 2.0ppm ozone concentration allowed limit.Ministry of Health provides the maximum allowable concentration of ozone is 0.2mg / m³;