Newly renovated house formaldehyde 0 60 consultation can not live

The "Indoor Air Quality Standard" GB T18883-2002 issued by the state stipulates that the formaldehyde concentration is lower than that it is suitable for human habitation. Your home detection is already three times the standard.

It is not recommended to live, it is already considered more serious.

Indoor air pollution is not only formaldehyde, but also benzene, toluene, xylene, ammonia and TVOC, but formaldehyde is more familiar because it is a class I carcinogens.

There are only two effective ways to remove decoration pollution: ventilation and professional treatment.

No matter what method is used to remove decoration pollution, the first thing to understand is the degree of pollution. Because the quality of the decoration materials used in the decoration process is uneven, even if all the decoration is made of environmentally friendly materials, it should be tested before moving in. Understand the degree of pollution in your home and then choose a reasonable removal method.

It must be said here that you must find a formal testing agency to do decoration pollution testing, the data error of the test box and handheld detector is very large, **News has also been reported, you can search on Tencent**: Is self-testing formaldehyde reliable? ）

Let's talk about ventilation first, this method is only suitable for houses that are not seriously polluted, if the multiple of the excess is too high, don't ventilate, and it may not be able to meet the living standard for two years. Although ventilation does not cost money, it is more time-consuming and laborious, and the house is vacant for a long time, so it is not recommended to use this method if you are in a hurry to move in. Moreover, it must be ventilated for a long time to have an effect, and the formaldehyde release cycle in furniture is as long as 3-15 years.

We must be prepared for a long-term battle with formaldehyde.

There is also a way is professional governance, indoor home environmental protection has matured after years of development, but there are fish in troubled waters in every industry. The following will introduce you to the commonly used treatment technologies of formaldehyde treatment companies in the market.

The first generation of formaldehyde removal technology: high-temperature fumigation.

Using the volatile characteristics of formaldehyde, benzene and other pollutants, the furniture is fumigated to increase the surface temperature of the furniture to 100-200 degrees Celsius, so that the formaldehyde is released faster. This method can only accelerate the volatilization of formaldehyde on the surface of furniture, but cannot volatilize the formaldehyde in the inner layer of furniture. The effect is okay in the short term, but the formaldehyde inside the furniture will be slowly released over time.

The second generation of formaldehyde removal technology: photocatalyst.

Photocatalyst is a catalyst that can decompose harmful organic compounds such as formaldehyde, toluene, and TVOC into harmless gases under the action of ultraviolet light, so as to achieve the purpose of removing formaldehyde. It is important to remember that the photocatalyst needs to react in the presence of light, and the more light it is, the better. However, in poor lighting or shady corners, the effect of this method in removing formaldehyde becomes limited.

The third generation of formaldehyde removal technology: air catalyst.

Like a photocatalyst, it is also a catalyst, but the difference is that the reaction medium of this catalyst is air. As long as it is in contact with the air, it can decompose harmful pollutants such as formaldehyde, benzene, toluene, xylene, ammonia, and TVOC. This solves some of the limitations of photocatalysts, and it can be said that the effect of governance is more thorough.

Moreover, the air catalyst agent will form a protective film on the surface of the furniture, which can prevent the continuous release of formaldehyde in the deep layers of the furniture.

It's so high, you can't live in it, and you'll have an accident if you live in it.

OK. Formaldehyde can live in people, because according to the GB T18883-2002 standard, the safe value of indoor formaldehyde concentration is milligrams per cubic meter, and according to the GB T50325-2020 standard, the formaldehyde concentration of Class I civil buildings should be lower than milligrams per cubic meter; The formaldehyde concentration of Class II civil buildings should be less than milligrams per cubic meter. No matter which national standard is used, the indoor formaldehyde does not exceed the national standard value, so everyone can rest assured that they can stay in the spring hunger.

The problem of indoor formaldehyde has received more and more attention from people, and formaldehyde values will be measured before moving into the house.

Formaldehyde can be occupied.

There are two formaldehyde standards implemented in China: 1According to GB T18883-2002 "Indoor Air Quality Standard", the safe value of indoor formaldehyde concentration is milligrams per cubic meter, 2

According to GB T50325-2020 "Standard for Indoor Environmental Pollution Control of Civil Construction Projects", the formaldehyde concentration of Class I civil buildings (residences, hospitals, schools, elderly buildings, etc.) should be less than milligrams per cubic meter; Class II civil buildings (offices, libraries, shopping malls, transportation transfer stations, etc.), formaldehyde concentrations should be less than milligrams per cubic meter. No matter which national standard is used, the indoor formaldehyde does not exceed the national standard value, so everyone can stay with confidence.

Formaldehyde hazards.

Formaldehyde harm to the human body is huge, if the indoor formaldehyde concentration is slightly higher than the national standard, the accompanying symptoms are allergies, rashes or tears, keratitis, etc. If the indoor formaldehyde concentration is seriously higher than the national standard, it will cause damage to the respiratory organs, and will cause bronchitis and other diseases, and the symptoms are chest tightness and breathing obstruction. If you live and live indoors with excessive formaldehyde for a long time, you are in a trance all day long, and you can not alleviate the symptoms by seeing a doctor and taking medicine, but as long as you replace the environment without formaldehyde, the symptoms will be alleviated a lot.

How to treat formaldehyde.

If the indoor formaldehyde concentration is, although it does not exceed the national standard concentration, it cannot be lived and cause harm to the human body, but if you still want to treat, you can use auxiliary aldehyde removal methods such as window ventilation, active adsorption and green plant absorption to absorb the formaldehyde with lower concentrations.

Source catalytic decomposition method and closed method: these are the two methods with the best effect of removing aldehyde at present, which can treat different forms of formaldehyde in various indoor environments, and catalyze the decomposition of the bound state into free formaldehyde, and the subsequent removal is very easy.

It is habitable, and the maximum allowable concentration of formaldehyde in the environment where people live is safe. However, the concentration of formaldehyde is related to temperature, humidity and sealing time! Therefore, it is necessary to develop the habit of ventilation at ordinary times. Here are some stools or methods to remove formaldehyde:

1. Activated carbon adsorption, activated carbon formaldehyde removal is a relatively cheap and practical method, characterized by physical adsorption, thorough adsorption, not easy to cause secondary pollution. The physical effect of activated carbon is deodorization and detoxification; There are no chemical additives and no effect on the human body.

2. Nanotechnology absorption and decomposition method, the method after decoration is to use products with strong capture, adsorption and elimination of formaldehyde. Using high-tech nano and nano modification technology, after multiple screening, formulation and activation modification, several natural nano-scale raw materials are combined with conventional oxidants, which can effectively remove harmful gases such as formaldehyde, ammonia, benzene, carbon monoxide and so on in the indoor environment.

3. The ventilation method removes formaldehyde, and through the circulation of indoor air, the content of harmful substances in the indoor air can be reduced, so as to reduce the harm of such substances to the human body. In winter, people often close doors and windows, indoor and outdoor air can not circulate, not only the content of formaldehyde in indoor air will increase, radon will also continue to accumulate, and even reach a high concentration.

Formaldehyde can be accommodated. When the indoor formaldehyde content is reached, it is generally possible to move in, because the minimum standard for formaldehyde content stipulated by our country is. However, if you want to make yourself and your family's personal safety more secure, then it is best to wait for the formaldehyde content to decrease before moving.

Precautions for removing formaldehyde.

1. Pay more attention when choosing furnishing products in the house. Of course, choosing environmental protection can effectively prevent the excess of formaldehyde, and even reduce the impact on people after moving in. Although some products meet the relevant standards, they should not be used excessively, because this may also aggravate pollution, for example, the amount of large core board should not exceed 23 square meters.

2. Pay more attention when choosing removal tools and equipment. You can see if there is a warranty service, so if the effect is not satisfactory, you can also consult clearly. The product should avoid secondary pollution, otherwise it will aggravate the degree of pollution and prolong the stay time.

Formaldehyde can be accommodated. In 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 stipulates that the room is closed for 12 hours for testing, and the formaldehyde does not exceed milligrams of square meters.

Formaldehyde can be used as a raw material for phenolic resins, urea-formaldehyde resins, vinylon, methenomine, pentaerythritol, dyes, pesticides and disinfectants.

Formaldehyde can be burned, and its vapor and air will form a ** mixture, ** limit 7%-73% (volume), and the ignition point is about 300.

Formaldehyde is chemically very reactive, and is easily reduced to methanol under the catalytic action of metals or metal oxides.

OK. When the indoor formaldehyde content is reached, it is generally possible to move in, because the minimum standard for formaldehyde content stipulated by the state is. However, if you want to make the personal safety of yourself and your family more secure, then it is better to wait for the formaldehyde level to decrease before moving.

1.Ventilation and aldehyde removal is a gift from nature, as long as the weather allows us to unscrupulously open the window to remove aldehyde, through the dilution method to control formaldehyde within a safe range, but the release of formaldehyde is longer, the use of ventilation to remove aldehyde requires long-term persistence, and other methods need to be taken to reduce formaldehyde concentration when ventilation is not smooth.

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4.Putting some green plants at home can also effectively remove odors, especially pothos, spider plants, aloe vera, monstera, cactus, ivy, etc., which can effectively absorb harmful gases. In addition, large plants such as the Ping An tree and the camphor tree, which are more popular on the market, can release a fresh gas on their own, which makes people feel happy, and is also more suitable for removing the smell of new furniture.

5.The fan can assist in opening the window for ventilation, many houses are not necessarily transparent, and the effect is not very good when the window is opened, so the fan can be used to accelerate the air flow in the room and quickly discharge the free formaldehyde in the air.

6.The main principle of photocatalyst is that the spray will adhere to the surface of the object to form a strong film, on the one hand, it will slow down the release of formaldehyde, on the other hand, it will contact with the film during the release process, and oxidize formaldehyde by using the photocatalytic performance of the photocatalyst. However, in daily life, the film may oxidize and wear, and the effect will be halved

Summary. Formaldehyde is occupants, according to the national regulations The minimum standard for formaldehyde content is milligrams per cubic meter, so the indoor formaldehyde concentration is measured, and it can be occupied. If you are not in a hurry to move in, you can further reduce the indoor formaldehyde concentration by drying and ventilation, and then move in after the formaldehyde concentration is reduced.

Formaldehyde is occupants, according to the national regulations The minimum standard for formaldehyde content is milligrams per cubic meter, so the indoor formaldehyde concentration is measured, and it can be occupied. If you are not in a hurry to move in, you can further reduce the indoor formaldehyde concentration by drying and ventilation, and then move in after the formaldehyde concentration is reduced.

Formaldehyde is not allowed. The state stipulates that the indoor formaldehyde content standard is between to. The indoor formaldehyde content has exceeded the standard, and it is necessary to open the window for ventilation, use air convection to discharge harmful gases, and wait for the indoor formaldehyde content to be reduced to move in. <

Formaldehyde is not allowed. The state stipulates that the indoor formaldehyde content standard is between to. The indoor formaldehyde content has exceeded the standard, and it is necessary to open the window for ventilation, use air convection to discharge harmful gases, and wait for the indoor formaldehyde content to be reduced to move in.