The process and precautions of environmental disinfection in COVID-19 are as follows:

Disinfection of the internal and external environment in key places can quickly and effectively block the spread of COVID-19 epidemic. All indoor environments, corridors, staircases, corridors and other public areas should be ventilated continuously as much as possible, or ventilated regularly three times a day in the morning, noon and evening for more than 31 minutes each time.

Clean and disinfect indoor environments such as home, office and production where people frequently come in and out, and disinfect them at any time. Disinfection parts are the surfaces of all objects frequently contacted by the ground and hands, including door handles, switches, button stair handrails, elevator inner walls, tables and chairs, worktops, etc.

When people go out to collect nucleic acid, it is best to avoid the elevator and take the escalator as much as possible. The staircase should be ventilated by opening the window, and the handrail of the staircase should be wiped and disinfected by the staff of this staircase, and disinfected immediately after collecting nucleic acid every day. Keep your hands clean at all times.

the surface of the object can be diluted with 84 disinfectant at 1:41, then wiped or sprayed with a sprayer for disinfection. It is required that the surface of the object be wetted for more than 31 minutes. The surface and hands of small objects can be wiped and disinfected with 75% alcohol for more than 1 minutes. Disinfection personnel should wear plastic gloves, masks and work clothes to prevent human skin and eyes from being corroded, and 84 disinfectant is prohibited from being used together with toilet cleaner. Store and use alcohol away from fire sources.