Is it necessary to open the window for ventilation in the cold northern COVID-19?

Epidemic prevention and control is no small matter, and this knowledge must be kept in mind! Small knowledge of epidemic prevention and control, even if the weather is cold, it is necessary to open the window and ventilate in time.

COVID-19 is a respiratory disease, which is spread through respiratory droplets and close contact. The cold weather in winter increases people's time in closed places, and the risk of respiratory infectious diseases increases. Avoid going to crowded places, and be sure to wear masks in crowded and relatively closed places, such as taking buses, elevators, going to hospitals, etc., to keep a safe social distance.

Window ventilation is one of the important means to prevent respiratory infectious diseases such as COVID-19. Even if the weather is cold, open the window in time to form convection and ensure indoor air circulation. When there are isolated people at home, their rooms should be closed and ventilated separately. Pay attention to cold protection and warmth during ventilation, especially those with weak resistance, such as the elderly and children, to do a good job of warmth.