Please keep this door and window protection guide
1. The floor intervals of most communities are relatively large, and the space is relatively open. Even if there are high-risk transmission points, opening windows for ventilation will reduce the risk of aerosol transmission. In particular, windows that open to corridors or corridors may have hidden dangers of transmission , it is recommended to open fewer windows or not to open them.
2. When ventilating, the windows on both sides of the room should be opened to allow the air to form convection, which can let in fresh air from the outside and discharge the turbid air. It can be ventilated 2-3 times a day, each time for 20-30 minutes.
3. The two time periods of 8:00-11:00 and 13:00-16:00 have better atmospheric diffusion conditions, lower pollutant concentration, and higher temperature in a day. When the weather is warm, the frequency of ventilation and ventilation can be increased. duration.
4. When there are people in home isolation at home, the door of the room should be closed and the windows should be opened for ventilation. Before opening the door of the isolation room, the window should be opened for ventilation before opening the door.