Ozone has strong oxidizing properties, so it has a strong bactericidal effect. In addition to killing propagules, it can also achieve the purpose of deodorization. However, the strong oxidizing property of ozone can cause harm to human health. Ozone can cause cell damage and even cancer when inhaled in large amounts. Ozone is irritating to the eyes and the respiratory tract, and can lead to reduced lung function and lung tissue damage. The dangers of ozone are more pronounced in people with underlying lung disease. Ozone can cause vision loss, dizziness and headaches when it irritates the eyes. Therefore, the hazards caused by ozone need to be taken seriously.