If the windows are closed after the renovation of the new house, how long does it take for formaldeh

Formaldehyde is safest to live in a renovated new house for 3-6 months. However, the free state.

Formaldehyde can be volatilized in about 2 months. What we usually call formaldehyde refers to the free state and the polymeric state. If it's polymerized formaldehyde, it's hard.

Different locations, indoor temperatures, and ventilation conditions can lead to different results. However, polymerized formaldehyde needs to be converted to free formaldehyde before it is volatile.

Open windows for ventilation and open all windows and doors to promote air circulation. In this way, harmful gases can be vented outside through the air stream. The operation is simple and effective.

However, this method should maintain a continuous ventilation time. Large fans can also be used to enhance wind power and assist ventilation. During this cycle, forced ventilation for a month, the indoor odor will be greatly reduced.

For some movable furniture, try to place vents as much as possible, and odors can be discharged directly outside.

With activated charcoal.

Indoor air pollution is greatly reduced after effective ventilation. Therefore, the current focus of treatment should shift to addressing the slow-release sources of indoor pollutants to ensure the long-term stability of a healthy home environment. When decorating the interior, just put a few pots of new water and green onion skin into the room to clean it to absorb the residual odor in the room.

Changing fresh water twice a day is convenient and economical.

Using the plant decontamination method, plants are the best product that nature has to offer to remove formaldehyde. The more respected varieties in the market are green pineapple, spider plant, and ivy.

and aloe vera. These plants are a combination of beauty and talent. Not only do they decorate the house but also purify the air.

Flowers suitable for indoor cultivation have a certain deodorizing effect and can eliminate some harmful substances left in the air. High temperature can promote the release of formaldehyde, reduce the total content of formaldehyde in the material, and reduce the release of formaldehyde in the later stage. Although formaldehyde cannot be completely removed, the effect is obvious.

Attention should be paid to electrical safety when using.

This time is not fixed, it depends on the decoration materials you choose, and it generally takes 3 to 15 years.

You don't have ventilation, close the doors and windows, keep it in this condition, and the formaldehyde will not disappear for the rest of your life.

Formaldehyde may not be eliminated all the time, and may stay in the house forever, and it will also cause some furniture to be infected with formaldehyde.

The most common way to remove formaldehyde indoors is to open windows for ventilation, which is the simplest and most convenient, and it is also a zero-cost method, but it is also related to the location of the house, the house type, and the weather, so if you want to only use the ventilation method to remove formaldehyde, it is not very stable, and it will be subject to many restrictions.

1. Wise Stone

It can actively adsorb indoor free formaldehyde, the process will not be affected by any external factors such as temperature, humidity, light, etc., the adsorption rate of formaldehyde is also dozens of times that of ordinary adsorption materials, in addition to the unique decomposition function, the adsorbed formaldehyde can be decomposed into harmless carbon dioxide and water, and then discharged, so that its internal pores have been in an unsaturated state, and the aldehyde removal rate can reach more than 90%. When choosing, it is important to note that it is a gray ore with an irregular shape and is not a round particle.

2. Wind fan

The fan can play the role of "inducing air" to accelerate the discharge of the gas containing free formaldehyde in the room to the outdoors, this method is only useful for the house with poor ventilation, and has little effect on the house with good ventilation effect.

3. Activated charcoal

Activated carbon has a large number of irregular pores, in which the pores similar to formaldehyde molecules will adsorb formaldehyde, which can achieve the purpose of purifying the air, but the number of internal pores is limited, when the adsorption is saturated, it may cause secondary pollution, and it must be replaced regularly when used

Fourth, photocatalysts.

5. High temperature and humidity.

The release rate of formaldehyde mainly depends on two factors, one is temperature, the other is humidity, so we can use this characteristic of formaldehyde, use heaters, humidifiers, etc. to keep the room in a state of high temperature and high humidity, and then we can cooperate with ventilation or adsorption materials to absorb the formaldehyde that has been released at home, this method is mainly to treat the latent formaldehyde in the home, and the effect is very good.

Formaldehyde, as a colorless and toxic gas, if exposed to it for a long time, will seriously affect people's health, and even suffer from respiratory diseases, and can also cause allergic rhinitis and pigmentation, so it is necessary to remove formaldehyde before moving into a new house, and it is recommended to carry out a variety of methods at the same time.

I think it is best to open the window all the time in addition to formaldehyde after decoration, so that you can effectively use the ventilation to blow away the formaldehyde and stuffy it before opening the window, I think it is very bad, it is very likely to make formaldehyde attached to some other items more difficult to remove.

Stuff it for a while and then open the window. Because all formaldehyde will be volatilized after suffocation, and then open the window, which can effectively dissipate the smell and make formaldehyde disappear quickly.

Of course, the windows have been opened for ventilation, and the formaldehyde pollution of the house has just been renovated is very serious, and the windows should be opened for ventilation for more than three months.

It is better to open the window after a while, so that the room can be kept at a constant temperature, which is beneficial for the release of formaldehyde.

Always open the window for ventilation, this effect is the best, and the use time is relatively short, and it will also bring great harm to yourself.

It's still stuffy for a few days to open the window, so the release will be very good.

It is impossible to remove formaldehyde by closing the windows after the renovation of the new house, and only by fully opening the windows for ventilation.

The formaldehyde released when the window is open or closed can not be removed, but the formaldehyde has been released, and the formaldehyde released when the window is closed can only be stored indoors, and the formaldehyde released when the window is opened can be circulated to the outside through the air. Generally, if the formaldehyde concentration is less than that, it is qualified.

After the decoration of the new house, the windows have been closed, the formaldehyde content in the house is high and the volatilization is slow, and the formaldehyde can not be removed, so it should be ventilated frequently to reduce the content of formaldehyde volatilization in the air.

The decoration of the new house should open the window to allow the air to circulate, so that the formaldehyde can be removed, and the window can not be removed if the air is not circulated.

The new house is decorated, the windows need to be opened 24 hours for ventilation, and the effect of formaldehyde volatilization is the best when the summer temperature is high, and the windows are always closed, which is not conducive to formaldehyde volatilization.

No, it is best to ventilate the new house regularly, formaldehyde exists for a long time, you can also find a professional organization to remove formaldehyde, and then put some green plants.

After reading your question and description, I think it's okay to go.

It's just slower than opening a window to ventilate.

Formaldehyde detection, generally two standards are often used, one is to close doors and windows for 1 hour, the other is to close doors and windows for 12 hours, of course, the formaldehyde limit is not the same, 1 hour, 12 hours.

This is the standard for GB 50325-2020. Close doors and windows for 1 hour inspection.

This is the standard for GB T 18883-2002. Doors and windows are required to be closed for 12 hours of inspection. Homes and offices generally refer to this standard for the sake of health. This one is a little stricter.

In addition to formaldehyde, close the window for a few days and then open the window.

In addition to formaldehyde, close the window for a week and then open the window, only fully let it play a role in removing formaldehyde, but this also depends on the specific situation, some time or even longer.

1. Depending on the actual situation, like winter, the indoor temperature is not high, and the volatilization rate of formaldehyde is slow, so the windows should be opened every day for ventilation. In summer, the indoor temperature is high and the formaldehyde release rate is fast, so you can close the window for about a week to let the indoor formaldehyde fully volatilize, and then open the window for ventilation.

2. As long as the temperature of the indoor space is not lower than minus 19 degrees, formaldehyde will slowly volatilize, and the higher the temperature, the faster its release rate, especially if the temperature exceeds 25 degrees Celsius.

However, it is also necessary to combine the indoor pollution situation, the more formaldehyde content, the more it will be released. If the indoor temperature is high, be sure to open the window for ventilation to let the formaldehyde in the air be discharged outside. Failure to ventilate in a timely manner may lead to more serious indoor pollution and make it more difficult to control.

3. In the cold winter, we tend to close the windows, so that the indoor air will not be able to circulate. If there is formaldehyde in the space, it is easy to volatilize, and it will also produce other harmful gases, which will cause a lot of damage to the human body if you live for a long time.

4. And when the window is closed, there is not much difference between the space and the secret room, and the release time of formaldehyde is also very long. And man-made panels.

In the process of use, formaldehyde is often volatilized continuously, and the maximum release time is 15 years. It can be seen that the work of removing formaldehyde is a difficult task, and we will inevitably cause many impacts if we live in it rashly.

5. When we remove formaldehyde, although the indoor temperature rises, the formaldehyde can be released, and then the window can be opened to discharge. However, this practice can only release most of the formaldehyde, and formaldehyde is continuously released, so it needs to be treated with the help of other methods. For example, place a few pots of green plants to beautify the space, and play a role in controlling the air and converting harmful substances into inorganic substances.

Although the effect is not great.

Doors and windows are usually closed for at least 24 hours. Some will close doors and windows for 2 to 3 days, the purpose is to release formaldehyde into the air in indoor furniture items containing formaldehyde for easy detection. After removing formaldehyde, the doors and windows should also be closed for a certain period of time, and then the indoor air should be tested to see if the indoor air is normal and up to standard.

Doors and windows need to be closed for 12 hours before measuring indoor formaldehyde. According to the "Indoor Air Quality Standard" GB T18883-2002 issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, the Ministry of Health and the State Environmental Protection Administration, the room is closed for 12 hours for testing, and the formaldehyde does not exceed milligrams of square meters.

Precautions for measuring formaldehyde:

1. Close the doors and windows for 12 hours before testing.

2. Close doors and windows during sampling.

3. The sampling time is more than 45 minutes.

4. The sampling point should avoid the vent.

5. In principle, the height of the sampler is consistent with the height of the human breathing zone. The relative height is between.

Before removing formaldehyde, it is generally necessary to close the doors and windows for more than 24 hours at this time, and it is necessary to ventilate after removal.

Before removing formaldehyde, close the doors and windows overnight. In this way, the amount of formaldehyde volatilized in indoor warmth is relatively sufficient. Then open the window for ventilation to remove formaldehyde. Close the doors and windows again at night. Open it again during the day, so that the speed of formaldehyde removal will be much faster.

12 hours (i.e., so the results of the air test with the doors and windows closed for 12 to 20 hours will be closer to the truth.)

It should be how long the test needs to be turned off, 1

Close doors and windows for 12 hours before testing.

Close doors and windows while sampling.

The sampling time is more than 45 minutes.

Sampling points should be avoided from vents.

In principle, the height of the sampler corresponds to the height of the human breathing zone. The relative height is between.

Since people spend about 90% of their time indoors, especially in winter and summer. With the doors and windows closed and the air conditioning on, the time spent indoors is much more than 12 hours a day, if followed"1 hour"Standards to detect indoor air, not only does not conform to the state of daily life, but also difficult to detect pollutants in such a short period of time, it is very likely to mislead occupants, so that they think that indoor air is qualified (in fact, it may not be qualified), and in the future, they are not aware of the harm of harmful substances such as formaldehyde, benzene series, and TVOC in the air.

Formaldehyde can not close the doors and windows, you must open the doors and windows to ventilate, and it takes more than three months to open the doors and windows.

There is no need to close the doors and windows when removing formaldehyde, it should be ventilated, and the methanol should be put in good for him. Then turn it off and use a normal formaldehyde removal instrument.

How long do I need to close the doors and windows before paying? It depends on the situation in his own home, and I think what he said was what he said for a period of time, that is, if he went to that place to find money, so that the effect would be better.

Do I need to keep the window open all the time to remove formaldehyde? Yes, especially in the summer. In summer, the light hours are long and the temperature is high, which makes it easier to release formaldehyde.

Close the window for a period of time to increase the indoor temperature, which is more conducive to the release of pollutants, and then open the window, which can emit more harmful gases. Therefore, windows should be closed during the day to increase room temperature, and windows should be opened for ventilation at night to reduce indoor formaldehyde content to achieve better formaldehyde removal. A newly renovated new house needs to open a ventilated window, but don't always open a ventilated window, because this method is more suitable for indoor formaldehyde has been completely released, some boards or furniture, wardrobe in the formaldehyde is not released all at once, it will be released slowly, in this case, you can choose a boring few days to open for a few days.

<> because the door is closed, the stuffy way can raise the temperature of the room, and when the temperature rises, the formaldehyde will be released faster. Then open the window for ventilation, and the effect of removing formaldehyde will be better. Otherwise, the window has been opened for ventilation, but the formaldehyde has not been released, only a lonely window has been opened, which has no effect of removing formaldehyde.

So the right thing to do should be to be stuffy for a few days, and then open the window for a few days, and in the process of stuffing for a few days, you can increase the temperature of the room, such as turning on the heating or turning on the air conditioner, and raising the indoor temperature is fine. Window ventilation can promote indoor and outdoor air circulation, removing formaldehyde through natural dilution, which is currently the most commonly used method.

However, it should be noted that the release of formaldehyde is slow, as long as 3-15 years, it does not take a few months of ventilation to solve the problem, when the indoor temperature rises slightly after the humidity moves, the formaldehyde will exceed the standard, so window ventilation can only be used as an auxiliary method other than formaldehyde. Activated carbon can rely on its developed pore structure and specific surface area, and can be in contact with the surrounding air to a large extent, passively adsorbing some pollutants into its pores, so it is widely used for indoor formaldehyde removal. Activated carbon of coconut shell material has the best adsorption performance.

However, the adsorption capacity of activated carbon for formaldehyde is weak, and the adsorption will reach saturation. After saturation, it is susceptible to external factors, desorption, resulting in secondary pollution.