Xinhua News Agency, Beijing, December 10 (Reporter Xia Ke) Recently, the temperature has dropped in many places across the country, and snowfall has occurred in some areas. The weather is getting colder and colder, and many people like to close doors and windows tightly, and the Beijing Center for Disease Control and Prevention suggests that long-term closure and lack of ventilation will cause indoor air circulation, which is harmful to health. Open the window for ventilation every day, open the window for ventilation after work, and close the window after returning home from work, which will not delay heating, but also maintain indoor air circulation.
The Beijing Center for Disease Control and Prevention said that the indoor environment is closed, which is easy to cause the breeding and reproduction of germs, increasing the risk of human infection, and winter is the season of high incidence of respiratory infectious diseases. In addition, the ultraviolet rays in the sunlight also have an auxiliary sterilization effect.
According to experts, when the weather gets colder, it is necessary to choose the right time to ventilate and avoid catching a cold. In the morning, the oxygen content of the indoor air is reduced, and when the bed is made, dust mites and dander fly around, and the room is in urgent need of ventilationWhen cooking, it is best to open the kitchen window, so that the large amount of oil smoke generated during stir-frying can be discharged outdoors in time to avoid polluting the indoor airAt noon, the temperature rises, and the harmful gases in the bottom layer of the atmosphere gradually dissipate, and the effect of opening the window for ventilation is better at this time.
The ventilation time of each window opening should not be less than 15 minutes, and 20 to 30 minutes is appropriate. If you only open a small slit in the window, increase the ventilation time to 30 to 60 minutes, and open the window for ventilation 3 to 4 times a day. Ventilation is best done by creating convection, such as opening the furthest windows and doors in the home to allow moving air to pass through the room.
The Beijing Center for Disease Control and Prevention reminds that in haze and dust weather, outdoor air pollution is heavier, and doors and windows should be closed. Strong winds can cause dust, and easy to diffuse pollutants in the air, when the wind force is above 5 or more, the window should be closed, and when the wind is small, the window can be opened a crack. In addition, in winter, do not wear thin clothing or blow the wind when sweating, in order to prevent colds, patients with cardiovascular and respiratory diseases are particularly sensitive to cold stimuli, and pay special attention to keeping warm when opening windows. (ENDS).