How much can you not live if formaldehyde exceeds the standard, and how much can you not live if the

Surpass. China's "Indoor Air Quality Standards" stipulates that the limit of formaldehyde in the indoor air of Class II civil construction projects is, and the limit of formaldehyde in the indoor air of Class I civil construction projects is. One of the types of civil construction works includes:

Residences, hospitals, school classrooms, senior buildings, kindergartens.

Whether formaldehyde and other toxic substances exceed the standard. According to the relevant regulations, the maximum allowable concentration of formaldehyde in the indoor air is milligram cubic meters, and the formaldehyde emission of the product shall not exceed milligram liters. When consumers buy materials, they must recognize whether there is one on the product packaging"China Environmental Label", which is the sign of the Ten Rings.

Indoor formaldehyde concentration is more than can not live, long-term residence may feel uncomfortable throat, cough and other uncomfortable symptoms, but also dizziness, nausea, vomiting and other symptoms, want to really deal with the best to choose a good leaf wide mud material to decompose formaldehyde, take measures:

First: open windows often indoors to ventilate and maintain ventilation and convection, because the indoor and outdoor clean wind will bring the formaldehyde continuously released by the indoor home out of the outdoors, which is the most effective way to reduce the concentration of indoor benzene and other pollutants.

Second: in some corners of the room or on the furniture to place some activated carbon solids, these solids have good adsorption, can effectively adsorb benzene and other harmful substances in the air, but also more economical, relatively good leaves of wide mud, long-term adsorption and can decompose formaldehyde and benzene.

Third: Breed more plants indoors, plants have the function of purifying the air, such as spider plants, pothos, ivy and other plants are good adsorption of formaldehyde experts, but the adsorption capacity of plants is more effective, so it can only play an auxiliary role.

Fourth: photophyll plant liquid, it is a plant extract, compared with simple plants, the removal effect is more obvious, is one of the few pure natural removal of decoration pollution products, compared to other photocatalyst products, it does not need light, will not produce secondary pollution, especially for maternal and infant family use, the safety is very high, now European and American countries use more, with the improvement of people's living standards and the strengthening of the concept of the environment, such a pure herbal method to remove decoration pollution will be more and more deeply rooted in the hearts of the people.

People who are exposed to formaldehyde for a long time can have different degrees of headaches, memory loss and sleep disorders. The formaldehyde smell of the renovated house is very strong, that is, there will be a pungent smell, which is caused by the adhesive used in the board. Low concentrations of formaldehyde are colorless and odorless.

Ventilate for a period of time first, speed up the release in the early stage, and deal with it in the later stage. After the decoration of the new house, it is necessary to ventilate for a period of time, so that the smell of paint can be dispersed, and the furniture will be removed in the later stage

1. Wipe the furniture with salt water to remove the smell. Put some adsorption and decomposition of leaf wide mud and activated carbon materials.

2. In summer, the temperature is high, and formaldehyde is released, and more ventilation can ventilate part of it.

3. Good materials to decompose, German quality Huankang aldehyde removal enzyme uses high-end raw materials, small particle size, strong adsorption, can decompose formaldehyde inside furniture, does not agglomerate, and forms a long-term treatment effect.

4. After removing it, you can see if there is still a smell, and the test is finished.

At present, there are two national standards related to indoor formaldehyde concentration in China, one is the "Indoor Air Quality" standard number GB T18883-2002 formulated by the Ministry of Health, which requires that it be closed for 12 hours and the indoor formaldehyde concentration is not higher. This standard refers to the World Health Organization's limit standard for indoor formaldehyde concentration, which is the minimum standard for human settlements and health.

The other is the "Code for the Control of Indoor Environmental Pollution in Civil Construction Engineering" formulated by the Ministry of Construction, with the standard number GB 50325-2010 (2013 edition), which requires closure for 1 hour and indoor formaldehyde concentration not higher than that, which is applicable to the developer's control of environmental pollutants in construction projects.

Through the closure time specified in the two standards, it can be analyzed which standard is more suitable for us to test our living environment.

First, sealing for 12 hours can make the content of formaldehyde in indoor air reach a stable equilibrium state, that is, the saturated state of formaldehyde content in indoor air, and 1 hour can not accurately measure the concentration of indoor formaldehyde in the residential state.

Second, we may spend more than 12 hours in a confined room. Therefore, from these two reasons, it can be known that the "Indoor Air Quality Standard" GB T18883-2002 is more scientific and accurate for detecting indoor formaldehyde concentration.

We used Ye Duofen before, this is to treat formaldehyde, spraying formaldehyde removal potion on decoration materials, the industry knows, I used to run projects in Yuhang District, Xiaoshan, I know that this kind of is necessary, as if a pot of engineering equipment is enough. And I saw that they were all using sprayers, which was pretty fast, very good.

Formaldehyde exceeding will have an impact on the human body, which is lower than the qualified range, do not live in the environment where formaldehyde exceeds the standard for a long time. The volatilization period of formaldehyde is between 3 and 15 years.

Method 1: Ventilation, if there are conditions, it will be better to ventilate with high temperature and high humidity, put some leaf wide mud and activated carbon materials. Ye Guangni will not adsorb saturation and has no secondary pollution.

CCTV has reported that this deficiency can be removed through Ye Guang mud, Ye Guang mud is a material different from activated carbon, which will not adsorb saturation, does not need to be exposed to the sun, and can decompose and adsorb formaldehyde for a long time.

Method 2: Spraying German Huankang aldehyde removal enzyme material is an upgrade of photocatalyst, which can remove formaldehyde inside the plate intact.

Method 3: Plant potted plants. Spider plants, aloe vera, junzi orchid, and ivy are mostly placed in the room.

Formaldehyde (mg m3) is the standard. If this standard is exceeded, it is exceeded. Beyond this standard can not live people.

In fact, the question of "how much formaldehyde exceeds the standard can not live" has to be based on the actual situation at home:

1. Are there any disadvantaged groups in the family?If there are children or pregnant women at home, it is not recommended to stay as long as it exceeds the prescribed range. The hospital proves that formaldehyde will affect the chromosomal mutation of the fetus, which will eventually constitute fetal deformation, and even congenital heart disease, fetal brain development is impaired, etc.

2. Formaldehyde content is within the limitThere are no special people in the family, and it is possible to live within it. However, it is necessary to insist on ventilation within 8 o'clock.

3. Ventilation conditions at homeSome families have small windows or no windows, and under such conditions, formaldehyde overruns are risky, and they cannot be ventilated in time, even if there are no vulnerable groups, they are not advocated to move in.

In fact, this limit is very safe for human health.

But there is a problem that has to be pointed out here.

This criterion is "based" on the current level of scientific knowledge.

That is, if with the increase in the level of scientific research.

It cannot be ruled out that it may prove in the future.

This safety standard values the likelihood that it is unsafe.

As long as the formaldehyde is exceeded, if you still have any way to bring it down, you can't live.

People like me who have just renovated a house and can't wait to move in it must be curious to know how long it will take for a newly renovated house to be occupied. After the house is newly renovated, there will be many harmful chemicals left in the air of the house. If you move into a newly renovated house right away, you will have allergies or respiratory diseases.

In general, the newly renovated house should be ventilated and left vacant for a few months before it can be inhabited. If you need to move in urgently, you can take a look at the method that I have personally tested:

First, you can put more plants in the new house.

How long does it take for a newly renovated house to be occupied? If you want to move into a newly renovated house as soon as possible, you can place more plants in the room. When plants photosynthesize, they absorb harmful gases in the house, release oxygen, increase the oxygen content in the new house, and purify the air in the new house, but the effect is minimal.

Second, activated carbon can be placed in the new house.

How long will it take to live in a newly renovated house? If you want to move into a new house as soon as possible, you can also place activated carbon in the new house. In daily life, activated carbon and alcoidite are often used, and activated carbon has a strong adsorption capacity, but it cannot effectively adsorb formaldehyde for no more than 20 days, but has the risk of secondary release.

It also has the ability to decompose twice, and it can be used for about three years. Balcoidite has the function of adsorbing harmful substances left after the renovation of new houses. If you want to get rid of the smell of paint on the walls, you can also put it indoors in an onion soak basin, which can also have some effect.

3. Formaldehyde removers can be sprayed in new houses.

If you want to move into a newly renovated house as soon as possible, you can also use some formaldehyde scavengers on the market to remove toxic residues from the house. The recommended spray is the herbal Dialin, plant extract, which has excellent performance in all aspects, and does not have to worry about carcinogenic, ultraviolet rays, and direct decomposition, especially for the elderly and children with low immunity. The formaldehyde scavenger extracted from the plant is directly sprayed on the pollution source to decompose and remove, which can speed up the release of formaldehyde inside, and at the same time can decompose formaldehyde and other decoration pollution, and there are obvious differences with other chemical sprays, which do not require light and ultraviolet rays, which are much better than photocatalysts, and are not the kind of sealants, no secondary pollution, and are recommended for families with babies and mothers at home.

How long does it take for a newly renovated house to be occupied? If you want to move into a new house as soon as possible, you can use the above methods to speed up the elimination of toxic residues left after the renovation of the house.

If the indoor formaldehyde concentration exceeds each cubic meter, it is not recommended to stay, because the formaldehyde produced after decoration has a great damage and impact on people's health. If the formaldehyde levels in the room are exceeded, these methods will allow you to move to a new home sooner.

1.High temperature.

High temperature and drying can accelerate the volatilization of formaldehyde and other harmful substances, so you can take out drawers, movable furniture, mattresses, etc., to the balcony for ventilation and drying, and furniture that can not be dried can be fumigated at high temperature, with garment steamer, steam engine mop, high temperature steam to speed up the volatilization of formaldehyde.

2.Open windows for ventilation.

This is nature's gift to us, and it is the most economical way to remove aldehyde, as long as you open the window, fresh air will enter the room, and formaldehyde will be purified by dilution.

3.Plant.

4.Arrowstone.

In addition to formaldehyde, it is best to use targeted products to remove formaldehyde and other pollution, such as Ruishi and diatom pure, lightweight packaging, suitable for household pollution control. Wise stone is an ore that can be decomposed while adsorption, with strong treatment ability and fast treatment speed.

5.Formaldehyde scavengers.

Formaldehyde scavenger belongs to the chemical reaction treatment of formaldehyde, after the spraying can quickly achieve the purification effect, the pollution value will be significantly reduced or quickly reached, but for the chemical treatment of formaldehyde, under the conditions of changeable environment, there may be secondary pollution, and it can only treat the formaldehyde that has been volatilized into the air, the effect of subsequent volatilized formaldehyde treatment is not particularly ideal, and if you want to remove formaldehyde from the root, it can only be used as an auxiliary method.

6.Formaldehyde removal company.

To remove formaldehyde, a single method is definitely not possible, and high temperature can be used to promote the release and reduce the total formaldehyde content. In conjunction with ventilation + physical adsorption + green plant absorption. When activated carbon is used, it should be dried frequently to release the adsorbed formaldehyde into the outside air, and the effect is still good.

If there is no time to replace, it is recommended to use Wisestone, Wisestone is a natural ore, not a regular multi-colored granular, please look for the official website when buying**, if there are merchants who sell the regular particles as Wisestone, please detour.

The national standard is, theoretically, it is more than that can not be occupied, when it exceeds the standard twice as much, there is a person who can not feel it, so the new house must actively deal with formaldehyde, I recommend several easy methods to use.

1.It can be removed with green plants such as spider plants, which can not only beautify the environment, but also play a weak role in removing formaldehyde.

2.Adsorbate is used to adsorb formaldehyde. It has been the main means of removing formaldehyde, this way is scientific and effective, such as Rui Shi and activated carbon, such as Rui Shi and activated carbon, they have a developed pore structure and specific surface area, can adsorb formaldehyde into their own voids, activated carbon is only adsorbed so it is easy to be saturated, Rui Shi is decomposed while adsorption.

3.Photocatalyst to remove formaldehyde, photocatalyst is currently widely used to remove formaldehyde, photocatalyst is a catalyst, catalytic reaction occurs under ultraviolet irradiation, can eliminate formaldehyde in the air.

4.Tea or Ruishi, tea, formaldehyde adsorption is mainly reflected in two aspects, one is to adsorb a small amount of formaldehyde molecules, the other is to adsorb moisture in the air, reduce indoor air humidity, and promote the volatilization of formaldehyde to a certain extent. In principle, tea can indeed adsorb formaldehyde, and Ruishi can decompose formaldehyde while adsorbing.

Household formaldehyde, we usually use green plants + physical adsorption + high temperature to promote the release of formaldehyde to reduce the total content of formaldehyde with ventilation, tea should be often dried, the adsorbed formaldehyde is released to the outside world, only in this way can it be used many times, otherwise it must be replaced frequently. Wise stone is a natural ore, not a regular shape of the particles, only on the official website can be bought**, if you find that there are merchants to the rule of the particles as the sale of the stone, please be cautious.