Is ozone poisonous?

Whether ozone is harmful to human body depends on ozone concentration. A small amount of low-concentration ozone is harmless to human body, and even has certain benefits, but high-concentration ozone will do harm to human body.

For example, when the ozone concentration in the atmosphere reaches 0. 1 mg per cubic meter, it can cause irritation to nasal and laryngeal mucosa. When the ozone concentration reaches 0. 1-0.2 mg per cubic meter, it will damage the upper respiratory tract, cause upper respiratory diseases and even asthma attacks, and cause irritation to the eyes.

When the ozone concentration reaches more than 2 mg per cubic meter, it will cause headache and chest pain, and in severe cases, it will lead to pulmonary edema, so too high ozone concentration will cause harm to the body.