Why does formaldehyde increase after a year of renovation?

After four years of renovation of a new house, will formaldehyde still exceed the standard? It depends on what kind of material you buy, if it is the national standard, if it is a national standard, it should be formaldehyde in four years, almost nothing, very little, if it is some curbed materials you buy, decoration for four years, formaldehyde will exceed the standard.

The house that has been renovated for a year still has formaldehyde, but whether it exceeds the standard or not, it can only be known after testing.

To remove formaldehyde and odor in a newly renovated house, the first step is to open the windows for ventilation and open the cabinet doors and drawers at the same time, and dilute and discharge formaldehyde to the outside through air convection. Although this step is simple, you should also pay attention to the weather conditions, once it is windy and rainy, you must close the doors and windows in time, so as not to break the newly renovated home environment with strong wind and rain. However, after opening the window for ventilation and then closing the doors and windows for a period of time, when the formaldehyde concentration reaches a high time, the window is opened and released, and this effect is repeated than the effect of opening the window all the time.

Decoration air testing process: In strict accordance with GB T18883-2002 and GB50325-2010 standards, the testing personnel will come to collect air samples, laboratory testing and analysis, senior engineers will review and sign, and issue test reports; The cycle is about 3-4 working days.

1. The importance of laboratory testing for formaldehyde and other pollutants: Formaldehyde testing in new houses is related to the life and health of you and your family, and you must experience a rigorous and complex experimental process in order to get scientific test results; The instrument that can measure formaldehyde on the spot is not scientific, the instrument cannot pass the CMA measurement certification, and its cost and reagents are relatively low, so it is mostly free or low-cost testing, and formaldehyde is detected for treatment; It cannot support the protection of life and health.

2. What to do if the formaldehyde detection exceeds the standard: our center will tailor it according to your detection value and decoration situation; While doing a good job of component analysis, trace back to the source of pollution, and give you a scientific solution and recommended use time.

3. What kind of suggestions will the industry authorities give about the removal of formaldehyde: the traditional formaldehyde treatment process is mostly high-temperature fumigation, spraying aldehyde remover, spraying photocatalyst, releasing ozone, etc.; Such processes can produce secondary pollutants as well as corrosive furniture. Formaldehyde is generally used as an adhesive, mostly existing in the inside of the board, so it cannot be used; Moreover, indoor pollutants are not only formaldehyde.

There are many reasons for this.

It may be that the decoration materials selected are of inferior quality, so the formaldehyde will exceed the standard after a year.

It is also possible that the room has been sealed for too long, and the formaldehyde concentration is superimposed, causing the formaldehyde to exceed the standard.

It is also possible that the purchase of low-quality furniture leads to excessive formaldehyde.

There are many such reasons.

As long as the decoration materials are unqualified, it is difficult to remove formaldehyde in one year or ten years, and the best way is to maintain ventilation, which must be a well-known brand of materials, and how much area is reasonably used!

This is very normal, first of all, after the house has been renovated, you must often open the window for ventilation, and the formaldehyde is slowly emitted, not all at once.

Is there still excessive formaldehyde in 1 year? At that time, my family used the **Shangzhuhai Goddess*** active silicon + diatom pure, the effect is simply too good, after 8 days, I tested, formaldehyde fully met the national standard, after a month, at that time, I was afraid that there would be formaldehyde again in the later period, and the test was also carried out, the formaldehyde content was almost 0, I was ready to dry, and then put it in the house.

The first reason is that the quality of the furniture is not good, and the urea-formaldehyde glue used for the board is not good for edge banding. Urea-formaldehyde glue** is cheap, but unstable, easy to release formaldehyde, and the release time can be as long as 10 years.

The second reason is that the detection error is large and not credible, and the detection tools purchased online with formaldehyde detection are not good, and the formaldehyde content is different at different times of the day.

It is normal to decorate a year and exceed the formaldehyde standard, because formaldehyde is very stubborn, its release life will reach decades, if you can't control formaldehyde within a safe range, formaldehyde is in contact with the human body for a long time, it is likely to damage human health, the following is an introduction to several efficient methods of removing aldehyde, I hope it can help you.

1.Formaldehyde in the new house exceeds the standard, the smell is serious, the first thing to do is to open the window for ventilation, at the same time you can open the wardrobe and drawer, so that the formaldehyde can be fully released, and then through the way of air convection, the formaldehyde will be released to the outdoors, although this step is simple to operate, but also pay attention to the weather conditions, this method is not suitable for the rainy season and winter.

2.Activated carbon is a traditional physical adsorption material, which has been well received in the treatment of indoor and outdoor pollution, its specific surface area is large, and it has a strong adsorption capacity, but its adsorption capacity is limited, and it does not have the function of decomposition.

4.Choose plants that can adsorb formaldehyde, pothos, aloe vera, spider plant and other plants can adsorb a certain amount of formaldehyde pollution, and can indeed remove formaldehyde. Placing some greenery in your new home can also help to beautify the room and freshen the air.

However, the adsorption capacity of plants is relatively limited, and if the formaldehyde concentration is too high, the plants will wilt and die.

5.The fresh air system can ensure that the home is in a ventilated state 24 hours a day, which can greatly increase the exchange of indoor air and the outside world, although the effect is very good, but the first time of this fresh air system is more expensive, and it is a better choice to install it before decoration.

6.High temperature is a more reliable way to remove aldehyde, high temperature and high humidity can promote the release of formaldehyde, reduce the total content of formaldehyde in the material, so that the release of formaldehyde in the later stage is reduced, but the long-term high temperature and high humidity will cause damage to furniture and decoration, and the power of heat production electrical appliances is higher, it will also cause aging to the line, and there are certain safety hazards, so when using this method, we must pay attention to safety

Summary. The second reason, which is little known, is that the rate of release of formaldehyde is relatively slow, up to 3-15 years, and the rate of formaldehyde release is affected by temperature changes. The higher the temperature, the faster the rate of formaldehyde release.

When the indoor temperature rises rapidly in summer, the release of formaldehyde accelerates, and the formaldehyde released into the air cannot be discharged in time. It accumulates indoors and increases concentration, which can lead to formaldehyde contamination and produce unpleasant gases. Therefore, formaldehyde may be exceeded.

If you are still not at ease, you can find a professional formaldehyde testing agency to test the indoor environment, and the conclusions drawn are more objective and true.

After a year and a half of renovation, it was found that the formaldehyde measurement was getting higher and higher, what is the reason?

Dear, hello teacher is happy to answer for you, I found 1The first reason is that formaldehyde is widely used in industry and can be used to make glue, and the cabinets in the house are mainly made of wood-based panels, which are pressed with broken wood and bonded with the cover, so there will be a large amount of formaldehyde residue in the wood-based panels. In addition, a cabinet is a special piece of furniture that is usually assembled at home.

When assembling the cabinets, glue will be used...

The second reason, which is little known, is that the release rate of formaldehyde is relatively slow, up to 3-15 years, and the release rate of formaldehyde is affected by temperature changes. The higher the temperature, the faster the rate of formaldehyde release. When the indoor temperature rises rapidly in summer, the release of formaldehyde accelerates, and the formaldehyde released into the air cannot be discharged in time.

It accumulates indoors and increases concentrations, which can lead to formaldehyde contamination and produce unpleasant head-round gases. Therefore, formaldehyde may be exceeded. If you are still not at ease, you can find a professional formaldehyde testing agency to test the indoor environment, and the conclusions drawn are more objective and true.

Cavity pie. Give you a reference kiss.

Summary. The main reason for the excessive formaldehyde in the interior is caused by the superimposed pollution phenomenon of indoor decoration, that is to say, as long as you use man-made board materials, no matter which level of environmental protection level will have a certain amount of formaldehyde emissions, because the so-called environmental protection materials do not represent 0 formaldehyde, but only represent that the formaldehyde emissions of the board are lower than the relevant standards, so it can be called a certain level of environmental protection materials!

The room has been renovated for more than a year, why is there still excessive formaldehyde.

The main reason for the excessive formaldehyde in the interior is caused by the superimposed pollution phenomenon of indoor decoration, that is to say, as long as you use man-made board materials, no matter which level of environmental protection level will have a certain amount of formaldehyde emissions, because the so-called environmental protection materials do not represent 0 formaldehyde, but only represent that the formaldehyde emissions of the board are lower than the relevant standards, so it can be called a certain level of environmental protection materials!

The best way to remove formaldehyde indoors is to ventilate, congenital is not enough to make up for the day after tomorrow, especially the first point needs to be paid attention to, as far as possible to achieve 24-hour ventilation (there is a fresh air system family directly open), at least not less than 3 months, such a house you can live in peace of mind and health.

How to remove formaldehyde in a new house.

1. Green plants: Green plants can absorb harmful substances such as carbon dioxide, and formaldehyde has a certain purification effect, and it can also play a role in decorating the space after moving in.

2. Activated carbon: There are many pores on the carbon body, although formaldehyde cannot be removed from the root, it has a certain physical adsorption capacity, which can adsorb formaldehyde harmful gases volatilized in the air. However, it should be replaced frequently to avoid secondary pollution.

3. Ventilation: Note that reasonable ventilation is not equal to blind ventilation, if it is in the summer high temperature weather, it is recommended to close the windows during the day, and ventilation at night is more ideal. If the north-south wind is convection, the effect is better and can speed up the removal of formaldehyde from the air.

You can also use a windy industrial electric fan to blow the blades out of the window.