House test 0 35mg m3 is it over the standard

Is it formaldehyde? Or is it something else? Formaldehyde is less than the standard, not exceeded.

The national standard stipulates that the formaldehyde content of indoor residence is: The standard for children's rooms is that the above data is measured from 12 hours in an enclosed space.

It's exceeded. It is recommended that the treatment of formaldehyde should be solved by maintaining ventilation. Decoration in addition to formaldehyde, first of all, we must understand the existence of formaldehyde, formaldehyde exists in all kinds of building materials, the pollution is caused by the release of formaldehyde into the air by the human body, now all kinds of formaldehyde removal methods are to remove formaldehyde in the air, and all kinds of formaldehyde removal materials are time-sensitive, in more than ten years can not be kept to replace, not to mention the huge cost, time can not be guaranteed, and the formaldehyde in building materials is not emitted at one time, but released little by little, the longest time can be more than ten years, Therefore, all kinds of formaldehyde removal are not once and for all, and they cannot solve the problem, so the best solution is to maintain ventilation.

The national standard value is: you are already moderately polluted, and it is better not to live there. If you are pregnant or have a baby, you must not live there.

If you really need to live, you can find a local indoor air treatment company for treatment, or use a sufficient amount of activated carbon (never use bamboo charcoal) for adsorption and ventilation.

You can also buy an air purifier, turn on the machine for 10 minutes after each time you enter the house, it is generally safe, and the air quality will finally reach the standard after about 3 months of use.

It doesn't matter, these are normal, everyone has a house, others just haven't been tested, don't they still live the same, and have a good mentality.

The national standard of the People's Republic of China "Hygienic Standards for Formaldehyde in Indoor Air" stipulates that the maximum allowable concentration of formaldehyde in indoor air is milligrams of cubic meters. The National Standard of the People's Republic of China "Parquet Flooring" stipulates:

The formaldehyde emission of Class A parquet is less than and equal to 9 mg 100 grams, and the formaldehyde emission of Class B parquet is equal to 9 mg - 40 mg 100 grams.

If the test of this instrument is inaccurate, it can be detected using the national standard, which is generally lower than milligrams per cubic meter and is not exceeded. There are special testing institutions that can do testing, generally door-to-door sampling air is brought back to the laboratory for testing and analysis, remember not to use the kind of handheld testing instruments or test boxes that read data on the spot, which is basically unreliable, and it is best to issue a CMA test report if you have the ability.

The way to control formaldehyde is to ventilate more, buy a few large floor fans at home, fans blow hard, faster than ventilation, but also effective, finally, if the economic conditions allow, you can put some leaf mud adsorption materials. Note that it is not activated carbon, activated carbon adsorption will be saturated and unstable, Ye Guangni can adsorb formaldehyde and other preferential substances adsorbed, lock and decompose, and it is very useful in the newly renovated interior. It's foolproof!

The national standard is that it is enough to meet this standard, and if it is exceeded, it will be exceeded.

There are two standards, one is GBT18883 indoor air quality standard, less than or equal to milligrams per square meter, and the other is GB50325 indoor environmental standard for civil construction projects, less than or equal to milligrams per square meter.

Formaldehyde is generally exceeded, and certain measures need to be taken to treat it

1. The newly renovated house has formaldehyde, benzene, and tvov odors, so you can ventilate it first, open the doors and windows to keep the air flowing.

2. Put some activated carbon and leaf clay materials on the cabinets and furniture at home, which can absorb the released flavor for a long time.

3. Huankang decomposes formaldehyde with aldehyde removal enzyme and does not agglomerate.

4. Pay attention to the selection of chemical reagents. It is easy to produce secondary pollution.

The symptoms of formaldehyde poisoning include bronchitis, serious damage to the lungs, severe burns of the nasal and pharyngeal mucosa, tearing, cough, loss of appetite, weight loss, weakness, headache, insomnia, drowsiness, finger tremor, and vision loss. In severe cases, it can directly cause death or cancer. In addition to formaldehyde, Maya blue has no secondary pollution, it is still very environmentally friendly, orchids, cacti, aloe vera and other plants are suitable for indoor placement, ** inexpensive, and beautify the environment.

In the case of occupancy, 1 pot of 2 square meters can be placed in the bedroom and living room, which will have some effect, but it cannot be removed from the roots.

The formaldehyde detector shows that OR is not exceeded. The new standard is OR is not exceeded.

After the new house is renovated, the interior is kept in a good state of ventilation for 3 months, so that the volatile harmful gases can be released as soon as possible, and then you can move into the new home. However, only 80% of the houses can be moved in after 3 months, and the remaining 20% will take longer to volatilize formaldehyde. You should know that many harmful substances are colorless and odorless, but no smell or peculiar smell does not mean that there is no pollution.

The methods of removing formaldehyde are: opening windows for ventilation. Formaldehyde is taken away by allowing the natural circulation of indoor air.

Plant removal method. Such as spider plant, tiger pill orchid, ivy, aloe vera, agave, gerbera can also play an auxiliary role at home.

Activated carbon adsorption method. Activated carbon and bamboo charcoal can be used, but the action space is small, and the amount of space is relatively large. And it needs to be replaced regularly, with the clear mangreen nano photocatalyst to remove formaldehyde, a week of irregular spraying, formaldehyde can be removed 90 to drop.

It can play a key role in the adsorption and decomposition of formaldehyde.

Before living in a new home, everyone is most concerned about indoor formaldehyde testing, air quality, whether the formaldehyde value is up to standard, is it safe to live in?

Therefore, the detection of formaldehyde in new houses has become the consensus of urban residents before moving in, so how many indicators of formaldehyde can be occupied?

Some say m3, others say m3

Which is more standard?

Let's take a look at the national formaldehyde standard first:

First: the acceptance criteria for delivery required by the Ministry of Housing and Urban-Rural DevelopmentFormaldehyde content in indoor air mg mBefore testing, it is required to close doors and windows for 1 hour in advance.

The second is: the occupancy standard required by the Ministry of HealthFormaldehyde content in indoor air mg mBefore testing, it is required to close doors and windows 12 hours in advance.

The second criterion is closer to the state in which people live in their lives.

Therefore, formaldehyde testing is now usually done using the standard of cubic meters.

So what does the formaldehyde concentration standard of mg m3 mean?

Does the formaldehyde concentration in the new home meet this standard?

Actually, the milligram limit.

It is safe for human health.

But there is a problem that must be pointed out.

This criterion is based on the current level of scientific cognition.

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

We cannot rule out the future.

This safety standard value is unsafe for possibility.

Indoor formaldehyde shall.

1. Man-made boards such as plywood, blockboard, MDF and particleboard used for interior decoration. The adhesive used in the production of wood-based panels takes formaldehyde as the main component, and the residual and uninvolved formaldehyde in the board will be gradually released to the surrounding environment, which is the main body of formaldehyde in the indoor air.

2. Furniture made of wood-based panels. In order to pursue profits, some manufacturers use substandard boards, or use inferior glue when bonding veneer materials, and the formaldehyde in the boards and glues seriously exceeds the standard.

3. Other types of decorative materials that contain formaldehyde and may be distributed to the outside world, such as wall covering, wallpaper, chemical fiber carpet, paint and coating, etc.

The concentration of formaldehyde in indoor air is related to the following four factors: indoor temperature, indoor relative humidity, indoor material loading degree (i.e., the surface area of formaldehyde emitting materials per cubic meter of indoor space), and indoor air circulation. Under the conditions of high temperature, high humidity, negative pressure and high load, the intensity of formaldehyde emission will be aggravated.

Normally, the release period of formaldehyde can be as long as 3-15 years.

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.

Often many families will choose a lot of environmentally friendly home decoration products when decorating, but environmentally friendly materials will really not have the problem of formaldehyde pollution? Here, I would like to tell you that although the harmful substances of all environmentally friendly materials used in house decoration are lower than the national standards and belong to environmentally friendly decoration products, environmentally friendly decoration materials do not necessarily mean that harmful substances will not be released. After all, the space at home is fixed, and the pollution sources will be superimposed.

In addition, most of the materials need to be processed and installed, which will also cause decoration pollution during this period. Therefore, when the harmful substances released by various furniture and decorative materials are superimposed, if the harmful substances in the air are exceeded, the home will be polluted. In addition, the degree to which an eco-friendly material meets the standard depends on the data detected within a certain time frame, which is generally 8 hours.

Therefore, the professional products that meet the formaldehyde removal standards are hereby suggested: environmentally friendly materials are indeed much better than ordinary materials, but it is difficult to avoid the complete absence of formaldehyde. It is recommended to go to the Bamboo Sea Goddess of Taobao *** to choose some active silicon and diatom pure to use together, the effect will be particularly good, and everyone can also stay with peace of mind, I bought it at the time, and the effect is very good.

Activated silicon is a popular formaldehyde removal product in recent years, and it is a mineral with irregular shapes. Its biggest advantage is that it first adsorbs a large amount of formaldehyde, and then completely decomposes formaldehyde. Therefore, there is no adsorption saturation.

The validity period of activated silicon is more than 5 years, and it generally does not need to be replaced. It can quickly solve the formaldehyde problem. Ordinary activated carbon has many pores and can effectively adsorb formaldehyde.

However, after using it for a period of time, it cannot be used, and it will release secondary pollution. Active silicon is a naturally occurring mineral. Can be used for three to five years.

Therefore, it is recommended that you use other active silicon. His family's activated silicon is 15-20 times that of ordinary activated carbon.

The formaldehyde content of the national standard is not higher.

Formaldehyde Measurement Standards:

1. mg mildly polluted.

Symptoms: susceptibility to colds, weakened immunity, dry throat, sore throat when waking up in the morning, etc. 2, mg mg m3 severe pollution.

Symptoms: cough, respiratory discomfort, indoor flowers and plants are easy to die, etc. 3. Extreme pollution above mg mg m3.

Symptoms: Asthma, etc....Susceptible to leukemia, lung cancer, etc....

Now there are some low-cost products such as formaldehyde detectors, and the formaldehyde content detected by these products may not be accurate, so we must choose carefully.

If it is exceeded, it will be considered uninhabitable. You can stay with peace of mind if you are staying at the bottom. Therefore, if the formaldehyde exceeds the standard, it is necessary to normalize the ventilation of the window, if the indoor formaldehyde exceeds the standard, or you are in a hurry to move in, you can choose professional formaldehyde removal products to remove formaldehyde.

Normal, even if it exceeds the standard, if there are pregnant women, children, and the elderly, it is over-standard, try these methods to remove formaldehyde 1fenestration; Put some plants, decompose with some good photophyll materials, photocatalysts and the like can decompose formaldehyde when they meet light, and the industry is used to remove formaldehyde more, and photophyll is a formaldehyde catalyst extracted from plants, which will be faster and safer, and is generally used in family conditions.

2.Open the doors of drawers, wardrobes, cabinets, etc., and put some long-term adsorption of activated carbon and alcoid, which can adsorb and decompose formaldehyde in the cabinet.

3.You can put a fan to enhance air convection;

4.It is better to open windows in summer than in winter, and it is better to open windows during the day than at night (because the higher the temperature, the greater the humidity, the faster the formaldehyde will escape. ）

First of all, the corresponding national standard is: Normally, exceeding this limit is exceeding the standard;

In addition, whether you can live or not depends first on the multiple of exceedance, just like a person has a fever, which is considered a low-grade fever, and it may be solved by simple cold medicine and antipyretics; However, if the degree is in the case, it may be necessary to inject intravenous drips and injections;

In addition, in the case of exceeding the standard a little bit, there are requirements for living in, and the doors and windows cannot be completely sealed, resulting in indoor air concentration; and so on;