Do I need to close the doors and windows to kill COVID-19?

There is no need to close doors and windows for disinfection in COVID-19. Since the outbreak of the epidemic in 2020, local areas have been disinfected by vehicle-borne disinfection according to the needs of prevention and control, but there are no cases such as "comprehensive disinfection" and "drone disinfection" that require citizens to close doors and windows. Because the outdoor air virus positive probability is very small. Even if the aerosol containing virus appears outdoors, the circulating air will decompose, dilute and circulate rapidly, and it is almost non-infectious. "Total extinction" is neither necessary nor feasible.

Standards and procedures for disinfection and killing in COVID-19;

1, stand by. Receiving protective equipment, disinfection equipment and disinfectant for secondary medical personnel. Check the specifications of protective equipment; The validity period of disinfectant; Whether the disinfection equipment is in normal use. Read the preparation instructions of disinfectant carefully,

2, informed of the epidemic, wear protective equipment, carrying disinfection equipment, disinfectant arrived at the scene.

3, after arriving at the scene, first of all, according to the epidemiological investigation results to determine the scope, object and time limit of on-site disinfection.

4, on-site observation before disinfection, understand the pollution situation, divide the clean area and the polluted area, prohibit irrelevant personnel from entering the disinfection area, and calculate the preparation amount of disinfection drugs according to the area or volume and the number of items, pay attention to the content of effective components of the drugs used to ensure the effective concentration of drugs.

5. Disinfect the environment, daily necessities, excreta, vomit, vehicles, etc. Suspected cases and close contacts.