According to the successful preventive experience of foreign dental clinics, dentists and patients face to face for short-distance diagnosis and treatment, and the time ranges from 20-30 minutes to more than 60 minutes. However, the number of infected dental medical staff is relatively low. The reason is that mouthwash disinfection should be carried out before, during and after diagnosis and treatment, which can effectively reduce the viral load in the oropharynx, reduce the exhaled toxic aerosol and reduce the risk of close contact infection in a specific diagnosis and treatment environment.

Foreign research shows that 10 second hypochlorous acid mouthwash with concentration above 57ppm can kill COVID-19. After going out and going home, it is recommended to gargle with 65ppm (60-80ppm) of hypochlorous acid mouthwash (twice in a row, each time for at least 30 seconds) and clean the nasal cavity, which can immediately reduce the viral load in the oropharynx and nasal cavity and reduce the risk of virus colonization infection. Even if you are infected, the early virus will concentrate in your mouth and nose.

People living in COVID-19 can regularly use hypochlorous acid disinfectant for environmental disinfection, effectively reducing germs.