Why should there be more ventilation in winter, and why should we pay attention to ventilation in wi

In winter, the doors and windows of the home are generally closed, resulting in poor indoor air circulation, and people always breathing in this space will lead to the production of a large amount of carbon dioxide, lack of oxygen, and the human body will have dizziness and chest tightness, so it is necessary to ventilate more.

In winter, especially on rainy days, many people habitually hide indoors and close their doors and windows tightly. In fact, this practice can easily cause indoor air pollution, which is very harmful to human health. Experts suggest that members of the public should open windows for ventilation for 20 minutes in the morning, noon and evening to keep indoor air fresh.

Experiments have shown that 60% of the harmful gases in the indoor air can be removed with each air exchange. In addition, it is necessary to maintain a suitable indoor temperature to avoid excessive temperature difference between indoor and outdoor, and generally the indoor temperature should be controlled at 16-22 as well.

Original、I hope mine is helpful to you!

Depending on what area you are in, if it is north, there is usually heating, the interior will be dry, and it will not be fresh because there is no circulation, and germs are easy to breed and family members to infect each other! So, properly ventilate

If the south is the same, it is better to ventilate frequently!

Especially family members who suffer from respiratory problems, or people who are prone to colds!

Wishing you good health!

Hello! In winter, the doors and windows are closed, and the indoor air is relatively dirty, which is easy to suffer from respiratory diseases. Opening windows for ventilation every day can keep indoor air fresh and prevent diseases.

In winter, many people close their doors and windows and stay at home. However, due to the closed doors and windows, the indoor air circulation is poor, resulting in air pollution, which can easily cause symptoms such as dizziness, sweating, dry throat, chest tightness and discomfort. Because of excessive warmth, it is easy to reduce the body's ability to adjust and adapt, and its ability to withstand cold, which is easy to cause some diseases.

In winter, ventilate the room frequently to ensure that people can breathe enough fresh air.

Summary. Dear, hello is a pleasure to serve you, winter is best from 9 am to 11 am, 2 pm to 4 pm when the windows are open. The attention to opening windows and ventilation is as follows:

1.Open the window for ventilation 3 to 4 times a day, 30 minutes at a time; 2.If the room is small, and the window opening time should be shorter when there is wind or cooler outside, and the window opening time should be longer when the room is larger, and there is no wind or warmth outside; 3.

It is best for the elderly and children to add some clothes before opening the window, so as not to fall ill due to the sudden drop in room temperature after opening the window.

Dear, you are very happy to rent for you, winter in the morning disturbed 9 o'clock to 11 o'clock in the afternoon, 2 o'clock to 4 o'clock in the afternoon when the window ventilation is the best. The attention to opening windows for ventilation has the following points:1

Open the window for ventilation 3 to 4 times a day, 30 minutes at a time; 2.If the room is small, and the window opening time should be shorter when there is wind or cooler outside, and the window opening time should be longer when the room is larger, and there is no wind or warmth outside; 3.It is best for the elderly and children to add some clothes before opening the window, so as not to fall ill due to the sudden increase in room temperature after opening the window.

What do you need to pay attention to when opening the window for ventilation in winterMisunderstanding 1: If it is cold, do not open the windowCorrect practice: No matter how cold it is, a person should exhale 22 liters of carbon dioxide per hour under normal circumstances, and if the ventilation is poor, the carbon dioxide exhaled by the human body will accumulate indoors.

Opening windows for ventilation can allow people to get more"Air vitamins", that is, negative ions, can increase the life span of a person. The number of window openings is not as good as possible, opening the windows for ventilation 3 times a day, each time for no less than 15 minutes, can basically maintain the freshness of indoor air. Myth 2:

The correct way to open the window in the morning and evening: 10:00 a.m. to 3:00 p.m

00 best window opening Many people are used to opening the window before going to work in the morning and coming back to open the window at night, according to the research Bu Jing test, the two air pollution peaks in the city are generally around sunrise and in the evening, which is the most unsuitable time to open the window. The two opposing air cleaning periods are around 10 a.m. and 3 p.m., so it is recommended that you open the windows more during this time.

Ventilation in the house in winter is more important than in the other three seasons, and it is not possible to open the window for less than a minute because there is heating inside or it is cold outside. Especially after a night's sleep, a lot of carbon dioxide has accumulated in the room, coupled with the dust you can't see, the air is very dirty, so it can be seen that you can't open the window for ventilation in winter.

The best time and frequency of opening the window in general

The bedroom should open the window for ventilation at least three times a day, each time can not be less than 15 minutes, these three time periods should be separated between ten in the morning and three in the afternoon, because during this period the city's air pollution is minimal, conducive to fresh indoor air, for the Chinese habit of opening windows in the morning and evening should be gradually changed. Shirt fingers.

Take a nap in winter, you can open the window appropriately".

In winter, the sun is abundant at noon, if you take a nap, the window can be left a little slit, but many people are afraid of cold, as long as the physical condition allows, and the weather is good, it depends on the situation, and you can directly open the window for ventilation after taking a nap.

Opening windows for ventilation helps keep indoor air fresh. Normal people have to breathe 16 18 times per minute, carbon dioxide accounts for 4 in the exhaled air, plus the air itself contains a certain amount of carbon dioxide, if the total content of carbon dioxide in the living room reaches 5, the human body will suffocate. Therefore, in the family with the doors and windows closed, there is a special smell in the house, which is a manifestation of insufficient oxygen in the room.

Living in such an environment for a long time, the human body will show various symptoms due to the lack of oxygen, such as dizziness, headache, palpitation, fatigue, and increased blood pressure.

With a temperature difference of 20 between indoor and outdoor, it takes 9 minutes for an 80 cubic meter room to be completely ventilated; If the temperature difference between indoor and outdoor is 15, it takes 11 minutes to open the window; If the temperature difference cannot be accurately grasped, 30 minutes of window opening is sufficient. The window opens at 9:00 a.m. to 11:00 a.m

00 p.m. or 2:00 p.m. to 4:00 p.m. is preferred.

Because during these two periods, the temperature has risen, the harmful gases that have accumulated in the bottom of the atmosphere have been dispersed, and the effect of opening windows for ventilation is better. Of course, the wind speed should not be too fast when opening the window for ventilation, and it should not exceed the meter second. From a sensory point of view, at such wind speeds, the human body does not feel that the air is moving significantly.

Opening windows for ventilation can destroy the growth environment of the seeds, so as to achieve the purpose of eliminating them. Warm, poorly lit and poorly ventilated rooms are suitable for the growth and reproduction of bacteria and viruses, thus increasing the chance of respiratory diseases in the human body. A hospital study in the United States confirmed that poor ventilation and low humidity in the living room are most conducive to the transmission of ** caused by pneumococcus A and hemolytic streptococcus.

By opening the window for ventilation, on the one hand, all kinds of amines can be discharged outdoors, and on the other hand, the concentration of acans in the unit space can be effectively reduced, and the invasiveness of acans on the human body can be reduced.

Opening windows for ventilation can make people get more "air vitamins". The negative ions in the air can improve the function of the body's immune system, respiratory system and central nervous system, and regulate the excitability of the cerebral cortex, which is known as the "air vitamin". This kind of negative ion is abundant in mountains, forests and coastal areas, containing about 2,500 per cubic centimeter of air.

In terms of the same unit volume of air, there are about 1,000 negative ions in rural fields, about 600 outdoors in towns, about 300 in modern buildings, and only a few dozen in closed indoors. By opening the window for ventilation, negative ions that are beneficial to the human body can be introduced into the house, which is of great benefit to human health.

First of all, it is best to open the windows for ventilation 3 times a day in the morning, noon and evening, and the ventilation time should be 15 to 20 minutes each time. Some people think that the more windows you open, the better, but this is not the case, because frequent window openings in winter will lower the room temperature, and the elderly and children are prone to catching colds and getting sick. Secondly, if the room is small, windy or cold outside, the window opening time should be shorter; If the room is large, there is no wind outside, or it is relatively warm, the window opening time should be relatively long.

It is estimated that in an 80-square-meter room, for example, about 20 minutes of opening the window without wind or light breeze can reduce the pathogenic microorganisms by about 60%. Third, if there are more outdoor pollutants and the traffic flow is relatively large, you need to adjust the window opening time every day. A little earlier in the morning and a little later in the evening, try to open the windows for ventilation when there are fewer cars.

If you encounter bad weather such as wind, sand, haze, etc., it is best to open the window a little smaller when there is a screen window, and use a humidifier, humidification spray, or put a basin of water on the heater to increase the humidity of the air and let dust and microorganisms sink. Fourth, it is best for the elderly and children to add some clothes or change into other rooms before opening the window, and then return to the room after ventilation, so as not to get sick due to the sudden drop in temperature after opening the window. If you are seriously ill, you need to open the windows carefully and use ultraviolet disinfection lamps to purify the air as much as possible.

In addition, it should be noted that the indoor temperature should not drop below 16 due to the opening of the window, and it is best to control it at 16 24.

Depending on the weather, it is best to open some windows at home during the day, and home improvement exhaust fans are the best. **Cheap and well ventilated. Don't be afraid when the dust is heavy.

If it doesn't affect the indoor temperature, you can open the window all day long. But it's too dusty. It is recommended to leave it on for about 10 minutes each time.

Turn on the air conditioner, if you turn on the air conditioner, then it will be half an hour and a half, if not, then open the corner of the window.

In winter, indoor ventilation for about half an hour is the best choice.

Yes, opening the windows for ventilation when the sun is sunny and the air quality is good at noon is good for health.

Especially under the radiator with the ulnar, more windows should be opened for ventilation in winter, which is easy to cause inflammation. If it is less than 16 and it is easy to cause a cold, you should try to open the window when there are fewer cars.

Clause. 1. The window opening period is 9 o'clock to 11 o'clock, and the two situations are not suitable for opening the window, the corner of the wall, etc., the winter comes, the gap and behind the wardrobe, and the outdoor activities of the elderly are reduced. Dismantle the socks every week with a wet rag to clean the sanitary corners of the heating room, in the absence of wind or breeze strip travel parts, can reduce the pathogenic microorganisms by about 60%, feel the most comfortable, respectively in the morning.

Clause. 2. At home, I don't open the window because I am afraid of the cold, and it is best to open the window for ventilation 3 times a day. There should be humidification equipment such as humidifiers in the heating room, and the indoor temperature should be controlled at 16 22.

In winter, try to choose ventilation when the sun is shining and the wind is suitable, and avoid ventilation in polluted weather such as haze.

Ventilation can be done in the morning and evening. 10:00 a.m. to 3:00 p.m. is best for fenestration.

According to research, the two peaks of air pollution in cities are generally around sunrise and in the evening, which is the most unsuitable time to open windows. The two opposing air cleaning periods are around 10 a.m. and 3 p.m., so it is recommended to open windows for ventilation during these hours.

Do not open windows: around sunrise and in the evening, the peak of pollution.

Emphasizing ventilation does not mean that doors and windows should be opened all day, and ventilation time should be reasonably selected. According to research tests, in cities with relatively concentrated industries, there are two pollution peaks and two relatively clean troughs during the day and night. The two pollution peaks are generally around sunrise and in the evening, when it is not advisable to open windows for ventilation; The two relative cleaning periods are around 10 a.m. and 3 p.m., and windows can be opened as appropriate.

Number of window openings: no less than two times for no less than 15 minutes each time.

The time and frequency of window opening in a day can be arranged according to the size of the house, the size of the population, living habits, indoor pollution and weather conditions. Taking a space of 100 cubic meters as an example, when there is no wind and the temperature difference between indoor and outdoor is 20, it takes about ten minutes to achieve air exchange.

In winter, it is cold, but the windows should not be opened less than twice a day for no less than 15 minutes each time.

The choice of ventilation varies depending on the climatic conditions. Pollutants are cleaned in rainy and snowy days, and pollutants are easy to dissipate when the wind blows, and the air quality in this weather is higher, so you can open more windows appropriately. However, on a cloudy day, if the temperature inversion from the ground does not disappear for a long time, it will be difficult for pollutants to dissipate, and even photochemical smog will occur, so it is not appropriate to open windows and go outdoors.

At this time, you can put a small high-efficiency ionizer in the room, which is also a good way to keep the air circulating and fresh.

You can choose to open the window for about half an hour when the sun is good.