When is the best time to open windows for ventilation?

In real life, the air in many indoor places is quite stuffy. At this time, many people will choose to open windows for ventilation, so that the indoor air can be released outdoors and fresh air from outdoors can come in. This makes the indoor air feel fresher, which is also very beneficial to the human body, making people refreshed and very comfortable. So when is it better to open windows for ventilation? Let us now understand when it is better to open windows for ventilation.

First of all, opening windows as many times as possible is not necessarily better, because frequent window opening will lower the room temperature, making the elderly and children more susceptible to illness. Therefore, in winter, it is best to schedule window opening times in the morning, noon and evening. Opening windows for ventilation three times a day can basically keep the indoor air fresh.

Secondly, if the room is small, or it is windy or cold outside, the window should be opened for a shorter time; if the room is large, or it is windless or warm outside, the window should be opened for a longer time. Taking an 80-square-meter room as an example, opening the window for about 20 minutes in windless or light breeze conditions can reduce pathogenic microorganisms by 60%.

In addition, if the indoor windows face a busy road directly, there is a lot of dust and pollution, then you need to change the window opening time. It should be determined according to the changes in the number of vehicles on the road, a little earlier in the morning and a little later in the evening, and try to open the windows for ventilation when there are fewer cars. If you encounter windy and sandy weather, it is best to open the windows smaller with screens, and use a humidifier, humidifying spray, or put a basin of water on the heater to increase the air humidity to allow dust and microorganisms to sink.

Don't keep doors and windows open all day long. Experts believe that it is generally sufficient to open windows for ventilation 3-4 times a day for 30 minutes each time. Taking a 100 cubic meter space as an example, in a windless environment, the air can be exchanged in about 11 minutes.

Avoid the two pollution peaks in the morning and evening. Due to the intensification of modern industrial pollution and automobile exhaust, air pollution has two peaks during the day and night, and two relatively clean troughs. The two pollution peaks are generally around sunrise and in the evening, and the two relatively clean periods are around 10 a.m. and 3 p.m.

It is not enough to just open the windows. When cleaning the room, wet cleaning should be used to prevent dust from flying all over the room. In air-conditioned rooms, the air conditioner filter should be cleaned frequently to prevent contamination by germs. Windows should be opened regularly for ventilation, and the duration should not exceed 12 consecutive hours.

The above article describes in detail when it is better to open windows for ventilation. I believe that friends who have read this will have a better understanding of when it is better to open windows for ventilation. In life, you should change the indoor air with fresh air every day to prevent some physical diseases. If the indoor air is not clean for a long time, it will cause respiratory diseases in the human body, which is very bad for the human body, so you should change the indoor air at an appropriate time.