The air quality is poor in foggy days, so I wonder if I can open the window for ventilation in foggy days?

Can I open the window for ventilation in foggy days? There are few windows in foggy days. It is not recommended to open the window for ventilation in the morning and evening in foggy days. Better wait until the sun comes out. There will be kitchen fume pollution and furniture additive pollution at home. If there is no ventilation, dirty indoor air will also be harmful to health. You can choose to open the window for a short time at noon with sufficient sunshine and less pollutants.

1. When is the best time to open the window for ventilation in foggy days, and around 4 pm is the best time. Try to open windows as little as possible in foggy days. In addition, we should grasp the opportunity of opening the window for ventilation. Proper window ventilation is beneficial to increase negative oxygen ions in the air. 30 minutes is enough to open the window. At the same time, we can plant all kinds of plants with large leaves and strong adsorption capacity at home, such as green radish, evergreen and tiger orchid. In addition, the air purifier also has a good effect on PM2.5

Second, how to open the window correctly in foggy days, and open the window once every morning, noon and evening. Therefore, in cold weather, it is necessary to open the window regularly in order to keep indoor air circulation, but how to open the window needs a little attention. Unless it is very foggy, it is necessary to open the window every day to keep the indoor air fresh in winter. It is best to open the window once every morning, at noon and at night, and the ventilation time is 15 to 30 minutes each time. You also need to choose when to open the window. If possible, you can prepare a PM2.5 monitoring device at home and choose to open the window when the PM2.5 concentration is low. If there is no equipment, you can only rely on visual inspection.

Third, when the pollution concentration is relatively small, try to open the window. Need to be reminded that if the home is close to the urban road, it is best to avoid opening the window during the morning and evening rush hours. At this time, roads are congested, and automobile exhaust will lead to poor air quality, which is relatively better. You can open the window properly. When the smog is very serious, it is necessary to minimize the window opening time, and families with conditions can choose air purifiers. However, if the air purifier does not have the function of exchanging and circulating with outdoor air, it is necessary to open the window regularly at the same time. For the elderly, the window opening time should not be too long, preferably not more than half an hour, otherwise the elderly may get sick because of the sudden drop in temperature. If the indoor air conditioner is turned on, you can put a pot of warm water indoors to keep the indoor air moist.