When using a medical air sterilizer, it must be carried out without humans. When the ozone concentration is low, the eyes, nose and throat have a stimulating feeling. When the concentration reaches 1-15 ppm, symptoms such as headache and local paralysis of the respiratory organs may occur. Ozone toxicity is also related to the contact time. Generally, the concentration below 20PPm does not exceed 2 hours, and there is no permanent damage to the human body. If you feel uncomfortable, you can blow outside and take a breath of fresh air.
