How long does it take to clean the formaldehyde after the renovation of the house?

Generally, it takes three months to ventilate, so that most of the formaldehyde can be removed, because after time of precipitation and volatilization, it is almost removed.

After decorating the house, it will take at least three months to clean the formaldehyde. In this process, you need to put formaldehyde sucking things at home, and you must always open the window for ventilation.

It takes more than ten years, because the volatilization time of formaldehyde is very long, up to more than ten years.

Of course, you still have to look at your new house after it is renovated. The material you use, its formaldehyde content is not high。There is,Your dosage is not large.

Generally speaking, it will take about four years to completely dissipate, if you say that the amount of formaldehyde used in your related materials is particularly large. It may take more than 10 years to completely disperse.

It's up to you to do it hereFrequent ventilationto diffuse formaldehyde. Also, do you like to decorate your room with some plants? There are some plants that absorb formaldehyde very well.

After the renovation of the new house, the general advice is still thereCheck in in a month!

Top 10 Formaldehyde Removal Plants

1. Monstera.

Monstera is ranked first in addition to formaldehyde. Monstera can absorb 90% of the toluene in indoor formaldehyde, and it is shade-resistant and easy to survive.

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2. Goose palm with ovula.

Goose leaf can reduce the concentration of formaldehyde in the room by about 9 milligrams per hour. At the same time, nicotine and other harmful substances in the air are transformed into harmless substances.

3. Western rhododendron.

Rhododendron has a certain shade resistance, which can absorb formaldehyde and sulfur dioxide in the room and purify the air. However, if it is placed indoors, it is best to ensure that there is enough light so that it can bloom more and absorb more formaldehyde molecules.

4. Spider plant. Spider plant won the reputation of "the king of formaldehyde removal", stretching growth, evergreen in all seasons, easy to feed, strong adaptability, able to adsorb indoor toxic gases.

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5. Tiger tail orchid.

Saxiwei orchid, commonly known as a bedroom plant, has strong adaptability, can help absorb some harmful gases in the room, and can effectively remove sulfur dioxide, chlorine, ether, ethylene, carbon monoxide, nitrogen peroxide and other harmful substances, playing a role in purifying the air.

6. Green basket. The green basket is commonly known as the "green purifier", the green leaves are evergreen, with the name of the formaldehyde hand, the vitality is very strong, and it can not only beautify the house indoors, but also help eliminate the indoor formaldehyde, which is the nemesis of formaldehyde.

7. Ivy.

Ivy is an indoor and outdoor vertical greening species, the branches are thin and soft, can climb on other objects, and can effectively remove formaldehyde, benzene and other harmful substances in carpets and plywood. Click Enter a description.

8. Agave.

Agave is one of the all-round formaldehyde removal plants, which can absorb 70% of benzene, 50% of formaldehyde and 24% of trichloroethylene, which plays a role in purifying the air.

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9. Aloe vera. Aloe vera is a super formaldehyde-removing plant. It can not only absorb formaldehyde, but also can be used as medicine, and has the effect of sterilization and beauty.

10. Peacock arrowroot.

Peacock arrowroot is very suitable for indoor potted maintenance, especially with the function of adsorbing formaldehyde, although the efficacy value of formaldehyde absorption is only half of that of spider plant, but it is higher than other plants. Peacock arrowroot can remove formaldehyde and ammonia mg within 20 square meters. At the same time, it can absorb formaldehyde very effectively when placed indoors.

Zhang Yinping, Director of the Building Environment Testing Center of Tsinghua University:

Formaldehyde mainly comes from the glue in composite wood building materials. Man-made board is made of a lot of wood fibers, sawdust bonding, China usually uses the adhesive is urea aldehyde grease glue, it is made of urea and formaldehyde compound, and the molar ratio of formaldehyde is slightly greater than urea, so after use, there will be free formaldehyde in the air, which will pollute the indoor air.

These glues are generally used in deep places of man-made panels, and the volatilization of formaldehyde is slow, "the fact is not as many people imagine, after the decoration of the window ventilation for a few months, formaldehyde will dissipate clean." Both research and life experience have shown that after more than ten years, formaldehyde still cannot be volatilized is very common. Therefore, it is unrealistic to expect that formaldehyde will be emitted clean after a few months of opening windows for ventilation. ”

How long does it take for formaldehyde to be clean after a new house is renovated?

How long does it take for formaldehyde to be emitted after the renovation of a new house depends on how long it takes for formaldehyde enclosed in the decoration material to be released.

After the decoration of the new house, the free formaldehyde in the air is easy to remove, and it only takes one or two months to open the windows for ventilation after the decoration; The formaldehyde enclosed in the decoration materials will be slowly released into the air, and this process can take up to several years.

A new house decoration enclosed in the decoration materials of formaldehyde pollution sources mainly exist in: floor leather, plastic veneer, plywood (including large core board, solid wood multi-layer board, particle board, etc.), wallpaper, latex paint, synthetic fiber and adhesives.

1. Ventilation method: simple, practical and cost-effective method, open the window ventilation to let nature purify the indoor air is more effective than any product, to believe that the power of nature is unlimited, even if the use of air purification products should also keep indoor ventilation, which not only helps to purify naturally, but also helps the air purification products to exert their own adsorption effect.

2. Plant law: here we have to say that the power of nature is unlimited, although formaldehyde is powerful, but a thing drops a thing, such as tiger pill orchid, spider plant, cactus and other green plants have the function of adsorbing formaldehyde, put some green plants at home, not only play a role in removing formaldehyde, but also beautify the living environment, is a way to get the best of both worlds.

B3. Activated carbon method: It mainly uses activated carbon and other materials to adsorb polluting gases, which belongs to physical adsorption and is the best physical removal method at present. The principle is that the porous structure of activated carbon provides a large amount of surface area, which makes it very easy to achieve the purpose of adsorption and collection of impurities.

4. Photocatalyst method: Under the irradiation of light, the photocatalyst will produce a photocatalytic reaction similar to photosynthesis, producing free hydroxide groups and reactive oxygen species with strong oxidation ability, which has a strong photoredox function and can decompose free formaldehyde in the air into pollution-free water and carbon dioxide.

C5. Active manganese catalytic method: The oxidant with activated manganese oxide as the matrix has a strong performance in degrading formaldehyde, and can directly decompose formaldehyde into carbon dioxide and water without secondary pollution. At present, it has been prepared into active manganese formaldehyde decomposition tablets, which is a cheaper, environmentally friendly and efficient means of removing aldehyde.

How long is not fixed, it is related to the decoration materials you use, house decoration, many people are worried about the problem of formaldehyde, in addition to formaldehyde has also become an important link before moving in! In today's content, I will bring you some common formaldehyde removal methods to see how many tricks you use correctly

1.Open all doors and windows to promote air circulation, so that harmful gases can be discharged to the outside through the flow of air, which is simple and effective. However, this method should be used to maintain ventilation for a long time, and a large fan can also be used to enhance the wind and assist in ventilation.

In this cycle, forced ventilation for a month, the odor in the room will be greatly reduced. For some movable furniture, try to place vents so that odors can be discharged directly to the outside.

4.Plants are the best products provided by nature to remove formaldehyde, and the more respected ones on the market are: pothos, spider plant, ivy, and aloe vera. These plants are a combination of beauty and talent, both to decorate the home and to purify the air.

5.The fresh air system is similar to the ventilation method of removing formaldehyde, but there is no need to open the window when in use, and the air delivered to the room is filtered, and it is also used when it exceeds the standard.

6.High temperature can promote the release of formaldehyde, reduce the total content of formaldehyde inside the material, and reduce the release of formaldehyde in the later stage.

How long can a new house be ventilated to live, the authoritative explanation is here, and it depends on how the professionals do it.

After the decoration of the new house, the first step is ventilation, presumably this is the choice of most people, ventilation is indeed a more effective way to remove formaldehyde, and it is simple and convenient, and has a good effect on reducing the accumulation of pollutants in the room, but do you know how long it takes to ventilate to move in, what kind of situation is considered a safety standard? Don't worry, see what the authority has to say.

Song Weiping is the director of the indoor environmental monitoring and governance center, with more than ten years of experience in environmental protection.

How long does it take to stay properly ventilated?

This is a more general question, there is no unified standard answer, it needs to be determined according to the degree of decoration pollution and ventilation of each home, the time will be relatively different, according to our past experience, ventilation for more than half a year is a relatively safe time, and it is very unrecommended to move in after two or three months of ventilation circulating on the Internet.

How do I determine if I have met the criteria for safe occupancy?

The most intuitive feeling is that the new house has no smell, there is a smell is definitely not suitable for occupancy, but no smell is only the first step of verification, we can also observe whether the green plants at home are yellow, and the simple way can also be tested through the formaldehyde self-test box to verify whether the data is safe, if there are conditions, it is best to find a certified qualified person to do professional testing, so as to ensure safety before moving in.

What else can we do besides ventilation?

1. Air purifier

Ventilation is good, but affected by the weather and house structure, many times it is not suitable for ventilation or the ventilation effect is not good, so in these time periods and rooms can be appropriately used with air purifiers to assist purification, which can make up for the lack of ventilation and accelerate the purification of indoor pollution.

2. Decomposition of algae

Ventilation is to accelerate indoor and outdoor air circulation to emit formaldehyde, and the time cycle of purification will be longer, if you want a faster effect, it is best to use it with purification materials, Baizao Na is the purification material recommended by our monitoring center, it is faster than the purification speed of carbon bags, and there is no need to dry and do not have to worry about adsorption saturation, suitable for people who are in a hurry to live and do not have time to dry often, and it will be convenient and fast to use.

3. Wipe with salt water

Formaldehyde is easily soluble in salt water, wiping the surface of furniture and boards with mild salt water can effectively take away some of the harmful substances attached to the surface of furniture, and has a certain effect on accelerating the removal of furniture odor and reducing pollution release.

How long does it take to remove formaldehyde after a new home renovation; Adults who need ventilation are left vacant for 3 months, infants, pregnant women need more than 6 months...

According to China's housing air standard, the maximum allowable concentration of formaldehyde is (0 08mg m3).

Because the smell of formaldehyde will be produced after the renovation of new houses, and formaldehyde is the main cause of neonatal malformations, childhood leukemia, and adolescent memory and intelligence decline.

Moreover, it has been identified as a "carcinogenic and teratogenic substance" by relevant authoritative organizations.

Even in adults, long-term exposure to low-dose formaldehyde can cause chronic poisoning, causing diseases of the respiratory, nervous system, and reproductive system.

Therefore, after the new house is installed, there must be a certain amount of ventilation time before moving in.

Because the physical resistance of infants, children, and pregnant women is far from being comparable to that of adults).

Generally speaking, if you can keep the windows open for ventilation all the time, it will take about half a year.

Under the condition of natural ventilation, it will take a long time, you can try Moqing stone, which is made of natural ore. The adsorption power is 20 times that of activated carbon, and it is OK to go to the goddess of the bamboo sea on Tmall.

Formaldehyde disappears after the decoration of the new house, if the problem is not big, it will take about three months, and the problem is serious It will take about half a year, and the new house after decoration should ventilate the house in time to let the formaldehyde dissipate quickly.

At least a month.

Formaldehyde itself can carry out condensation reaction, and in general commodities, 10%-12% methanol is added as an inhibitor, otherwise polymerization will occur. It can carry out aldehyde condensation reaction with aldehydes and ketones. It is easy to condense with ammonia or amine compounds, such as reacting with ammonia to form metropine, and condensing with urea to form dihydroxymethyl urea.

Formaldehyde is condensed with syngas to produce ethylene glycol.

Production technology. Since 1888, when Germany first realized the industrial production of formaldehyde, the production methods of formaldehyde have appeared according to the different raw materials: non-catalytic oxidation with liquefied petroleum gas as raw material, dimethyl ether oxidation, methane oxidation, and methanol air oxidation.

In 1923, after the German BASF company realized the large-scale production of methanol from syngas, the large-scale production of industrial formaldehyde had a good raw material base, and the methanol air oxidation method became the most commonly used method for the production of industrial formaldehyde. As of 2010, more than 90% of the formaldehyde produced in industry is made from methanol as raw material, using methanol air oxidation method.

Methanol air oxidation method is divided into methanol excess oxidation method, air excess oxidation method, later, in order to prepare high concentration formaldehyde and improve the comprehensive utilization efficiency of energy, and successively developed tail gas circulation method, formaldehyde oxidation method and other branches.