During the epidemic, is it good to open windows for ventilation?

The new coronavirus is menacing, and in order to dispel everyone's panic, many experts, scholars, and institutions have introduced ways to prevent infection. There is a sentence in it, "Pay attention to open windows for ventilation". Recently, however, there has been a rumor on the Internet that seems to disprove this claim - "opening windows for ventilation may bring the virus into the house".

The crux of the matter lies in droplets. The novel coronavirus has neither hands nor feet nor wings, and the only way to transfer from one person to another is to rely on droplets, which are small droplets brought out by an infected person when they speak, cough, or sneeze. There are three outcomes after the droplet leaves the patient.

First, it is inhaled directly by a healthy person. Second, it is indirectly transferred to the hands of healthy people. When encountering sneezing and coughing, many people will subconsciously cover their mouths with their hands.

As a result, the droplets are sprayed onto the hands, and the virus in the droplets can contaminate various objects, such as doorknobs and clothes, with the movement of the hands. Studies have shown that respiratory viruses can survive on doorknobs for one to two days, at least for the first day. Thirdly, the droplets neither directly "hit" a healthy person, nor indirectly transferred to objects such as doorknobs, but are suspended in the air.

The main components of the droplets are water and viruses, and if the environment is very dry, the water will gradually evaporate over time and the small droplets will disintegrate and become smaller. The smaller it is, the longer it can stay in the air.

For the third case, how can I reduce the virus suspended indoors? The direct way is to open the windows for ventilation. As mentioned earlier, a radius of one metre from an infected person can be considered a contaminated area, which is nothing compared to the vast air – we can think of the outdoor air as clean.

As long as the windows are opened and the relatively clean air outside drives away the air that may be polluted indoors, the number of viruses in the room can be effectively reduced. 。Therefore, it is beneficial to open windows for ventilation during the epidemic.

Of course, it is good that even during the epidemic, it is necessary to open the windows for ventilation. Because during the epidemic, we can't go out and stroll, we have to stay at home, because this can reduce the spread of the epidemic, but it is precisely because we can't go out, so the indoor air is turbid, and our body will not be able to stand it if we live in such a situation for a long time, so it is very necessary to open the windows for ventilation every day. <>

We can think of opening windows for ventilation as a process of diluting the virus. Because we have been staying in the house, the indoor air is turbid, and if it continues like this for a long time, some viruses will breed, and there is a window blocking it, the indoor air is turbid, but the outdoor is fresh, so when we open the window, the outdoor fresh air rushes in, diluting the indoor air, which also allows us to reduce the probability of other diseases in addition to the epidemic. <>

Don't worry about viruses drifting in the outside air. Because there will always be three ways of transmission of the new crown pneumonia virus that we know now, the first is contact transmission, as long as we don't go out and hang around, this chance is very small. The second is droplet transmission, and when we talk to others, we wear masks, which can also be prevented.

The third type of transmission is called aerosol transmission, aerosol is tiny virus particles dissolved in the air to form colloids, this colloids are called aerosols, aerosol groups generally survive in closed spaces for a long time, so opening windows for ventilation is a necessary activity for us. <>

The inflection point of the epidemic does not mean that we can relax now. The epidemic situation has now improved, but the improvement is not a complete solution, so what was before and what we should be now, should not act arbitrarily because there is an improvement, wear a mask, wash hands frequently, and disinfect more.

The above is my opinion, I hope it helps you.

Regular ventilation during the epidemic is of course good, ventilation can allow indoor air circulation, exchange fresh air, can make the probability of illness lower, make yourself safer.

In addition to washing hands frequently during the epidemic, the most important thing to do is to ventilate in time, only in this way can we ensure air circulation and have cleaner air indoors.

Well, this facilitates air flow and prevents germs from attaching to furniture or people. It is not carbon dioxide in the room, and it will cause a feeling of tightness in the chest after a long time.

The probability of the virus entering the home through a window is very small. However, opening windows for ventilation allows bacteria and carbon dioxide to be quickly discharged into the house. It is more conducive to the improvement of the immunity of residents.

It should be better. After all, it's not enough to be full of germs. But the smell of the home is also terrible if it is not ventilated.

Open the windows for ventilation during the epidemic, how many times a day is it good to open the windows? After reading it, it really increases knowledge.

During the epidemic, you can open the windows for ventilation. The virus is actually transmitted through droplets in the air. Sneezing in the air produces a lot of droplets, and the virus inside the droplets enters the human body, and after breathing into it, it can cause infection.

If the air is well circulated, it will help the air to dilute the concentration of the virus, thus preventing the infection of the virus. If someone sneezes in a confined space, the droplets will have a higher concentration of virus.

Epidemic precautions:

1. Reasonable travel arrangement: advocate the public to celebrate the festival on the spot, insist on non-essential, do not travel, and reduce the flow of people; If you must travel, you need to understand the epidemic situation of your destination in advance, obey the local epidemic prevention and control requirements, travel off-peak, and do a good job of protection. Do not travel to medium- and high-risk areas and relevant areas without special circumstances, and do not travel across borders; It is recommended that the elderly, people with chronic diseases, pregnant women, etc. do not travel on holidays.

2. Avoid dinner gatherings: advocate a healthy and simple lifestyle, try not to gather or gather during the festival, try to avoid going to crowded public places, and advocate family dinner gatherings to be controlled to less than 10 people. Strictly control all kinds of festivals, group worships, exhibitions and other large-scale activities, and do not hold any activities that can not be held, and do not engage in on-site activities that can be held online, and reduce the frequency and scale of those that must be held.

3. Pay attention to food hygiene: Please buy cold-chain food in regular supermarkets or markets, do not purchase food without clear information, and try to avoid direct contact with frozen food with your hands. When storing and processing food, separate raw and cooked cutting boards, kitchen knives, cutlery, etc., and wash them in a timely manner.

Meat, eggs, seafood and other foods are cooked thoroughly. Advocate public chopsticks and spoons, reasonable diet, balanced nutrition. When food is placed in the freezer, it should be packed strictly to avoid contamination with each other.

4. Strengthen personal protection: The epidemic is not over yet, please continue to maintain a high degree of awareness of prevention and control, do not take chances, and remember that danger comes from carelessness. Adhere to the scientific wearing of masks, frequent hand washing, frequent ventilation, and no gatherings.

Minimize crowd gatherings and control the size of the number of people at dinner gatherings. Practice social distancing and good hygiene.

5. Do a good job of health self-testing: advocate residents to celebrate the festival on the spot, insist on non-essential, do not travel, and reduce the flow of people; If you must travel, you need to understand the epidemic situation of your destination in advance, obey the local epidemic prevention and control requirements, travel off-peak, and do a good job of protection. Do not travel to medium- and high-risk areas and relevant areas without special circumstances, and do not travel across borders; It is recommended that the elderly, people with chronic diseases, pregnant women, etc. do not travel on holidays.

During the epidemic, it is possible to open the windows for ventilation.

It is well established that ventilation through windows can improve the indoor environment, and air circulation is one of the most important measures to prevent respiratory diseases. If the doors and windows are closed, people will release exhaust gas and carbon dioxide while living indoors, reducing indoor air quality, which is actually not good for the health of family members in the long run.

By opening windows for ventilation, air circulation can be created indoors and outdoors to improve the indoor environment. Therefore, even if you are isolated at home, you should pay attention to opening the windows regularly for ventilation.

The correct way to open windows for ventilation is as follows:

1. Ensure the number of ventilations: ventilate at least 3 times a day, and the ventilation requirements for workplaces that may be polluted are about once every 5 minutes.

2. Choose a good ventilation time: 8:00-11:00 in the morning and 13:00-16:00 in the afternoon are the best time periods for ventilation.

3. Pay attention to the ventilation time: open the window in the absence of wind or breeze, and it is recommended that the window opening time should be 20-30 minutes. If it is only a small crack, the window opening time should be 30-60 minutes.

What is the novel coronavirus?

The 2019 novel coronavirus, known as "2019-NCOV", was discovered as a result of the 2019 Wuhan viral pneumonia case and was named by the World Health Organization on January 12, 2020. Coronaviruses are a large family of viruses known to cause colds as well as more severe illnesses such as Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). Since December 2019, Wuhan City, Hubei Province, has continued to carry out surveillance of influenza and related diseases, and has found a number of cases of viral pneumonia, all of which were diagnosed as viral pneumonia and lung infection.

What are the symptoms of the new coronavirus?

The early symptoms of the novel coronavirus infection are similar to the cold symptoms caused by the general viral infection, mainly manifested as tiredness, fatigue, muscle aches, and a few patients will show gastrointestinal reactions, such as abdominal pain and diarrhea.

As the disease progresses, the patient will develop symptoms of fever, and the fever degree will be above the degree. Respiratory symptoms may also occur, including cough and sore throat.

As the symptoms worsen, patients may experience severe symptoms such as breathlessness, chest tightness, shortness of breath, and even respiratory distress. Imaging tests will reveal ground-glass changes in the lungs. In severe cases, sepsis, septic shock, coagulopathy, and renal failure may also occur.

At present, there is no specific ** method for the disease caused by the novel coronavirus. However, many symptoms are manageable and need to be treated clinically**. In addition, adjunctive care for infected people can be very effective.

How to prevent the novel coronavirus?

There is no effective vaccine prevention method for the new coronavirus, and personal protection is the most practical way, including:

Maintain basic hand and respiratory hygiene and adhere to safe eating habits.

Avoid close contact with anyone who shows symptoms of respiratory illness (such as coughing and sneezing) as much as possible.

Drink plenty of water and take rest to boost your immunity.

Maintain ventilation in the living and working environment.

What should I do if I suspect that I have the new coronavirus?

If you suspect that you are suspected of being infected with the new coronavirus, you should isolate yourself from your family and friends as soon as possible, and do not go out to avoid cross-infection of the virus.

When there are further abnormal clinical manifestations such as fever (fever degree) and cough, it is necessary to report to the local disease prevention and control agency as soon as possible, so as to better control the spread of the new coronavirus.

Under the guidance of the local disease prevention and control agency, go to the designated medical institutions for investigation, diagnosis and treatment. You must remain under medical observation for 14 days, and if no other symptoms occur during the 14-day period, you can be released from isolation.

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Inventory of commonly used types of masks.

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When you asked when the epidemic is serious, the windows should be opened for ventilation, of course, it should be out of the sun, and it is better when the temperature is high.

It's just a bit windy every morning. Otherwise, the air is too stuffy, unfamiliar, uncomfortable, and the mood will not be comfortable.

After getting up in the morning, you should open the window for ventilation, the ventilation time should be determined according to the season, the winter should not be too long, there are 15 minutes on the line, spring and autumn can be appropriately extended, but if it is in the humid south, it is best to open the window for ventilation in the afternoon when the climate is dry, so as not to enter the room in the morning.

Ventilation should not be less than 40 minutes at a time during the day.

When the sun comes up, have plenty of wind.

Specifically, the doctor's method is Mikami.

I recommend opening the window in the morning, the air is fresher in the morning, it should be good, after noon, in the evening, three times.

The so-called novel coronavirus is transmitted through respiratory droplets and contact, so it is important to wear a mask in public to prevent infection with the new coronavirus. In addition, during the epidemic, it is necessary to wash hands and disinfect frequently, pay attention to personal hygiene, and frequently open windows for ventilation. So, can you open windows for ventilation during the epidemic?

Can you open the windows for ventilation during the epidemic?During the epidemic, it is possible to open the windows for ventilation. Opening windows for ventilation can not only effectively reduce indoor viruses, but also fresh air is more conducive to physical health and enhance the body's resistance.

Unless it is a window-to-window situation, and one of the families has a close contact or suspected disease, it is best to avoid opening the window for ventilation as much as possible.

If the windows are not opened for ventilation for a long time, the confined space is easy to breed viruses and bacteria, which will increase the risk of infection.

Moreover, normal people have been in this kind of poor air circulation environment for a long time, which will affect their health, make the body's resistance to the potato hall decrease, and they will be susceptible to virus or bacterial infection when they go out.

If there is a suspected patient with novel coronavirus pneumonia in the home, it is best to arrange it in a single room with good ventilation in the downwind direction, and ensure that the windows are open for ventilation.