Is it reliable for in addition to formaldehyde to find an environmental protection company?

You'd better open more windows and put some flowers to purify the air, which is more practical. Environmental protection companies are generally exaggerated and cautious.

Method for removing formaldehyde:

1, ventilation

Needless to say, ventilation is a simple and effective way to discharge harmful gases outdoors through the flow of air. The only drawback is that the formaldehyde release cycle is long, usually three to fifteen years. It is obviously unrealistic to leave the new house idle for more than three years after renovation. Because of this, ventilation alone cannot meet the requirements.

2. plants absorb a.

Plants can inhale some harmful substances through photosynthesis, but the effect of this method is extremely limited. The reason for this is the following：

1), plants usually inhale some harmful substances during the day, but they don't have this function at night. The law of people's life is generally outdoor during the day and indoor at night. When people need air purification most, plants can't play a corresponding role.

2) The harmful substances absorbed by plants are extremely limited. The national standard requires that the formaldehyde emission value is less than 0.08 mg/m3, and the formaldehyde in most newly decorated houses is not less than 0.2 mg/m3, while the formaldehyde absorbed by the high formaldehyde absorption efficiency is only 20 micrograms per hour. A room of 100 square meter, with a height of 3 meters, a formaldehyde value of 0.2 mg/m3, and 1.800 pots of green radish. Formaldehyde should be reduced to 0.08 mg, and almost the whole room space needs to be filled, which is still carried out under the condition of sufficient sunlight, and it is necessary to ensure that formaldehyde is not released during absorption. In fact, formaldehyde has been continuously released from the renovated furniture. Therefore, plants can only play an auxiliary role in controlling harmful substances such as formaldehyde and benzene.

3. Activated carbon adsorption

This trick really works, and it works well. Activated carbon is cheap and practical, suitable for users.

The initial use of activated carbon is indeed effective, because the pores have adsorption potential, which is formed by the attraction between carbon molecules and adsorbed molecules. The smaller the aperture, the stronger the adsorption potential. The physical adsorption of activated carbon can be completely adsorbed without causing secondary pollution. Besides formaldehyde, it can also adsorb other harmful gases.

4. Soaking vinegar and black tea in water can remove formaldehyde.

Because formaldehyde is soluble in water, you can put more pots at home to absorb formaldehyde, or soak it in vinegar or black tea. It is a fact that formaldehyde is soluble in water, water, alcohol and ether. Free formaldehyde in the air will dissolve into it when it meets water during movement, which is similar to the adsorption principle of activated carbon. The contact area between a basin of water and air is only the size of a basin, while the specific surface area of internal pores of 1g activated carbon can reach the size of a football field. Even if you put a hundred pots of water in the room, the adsorption effect will not be much stronger than a small bag of activated carbon. Therefore, it is obviously unrealistic to use water, black tea and vinegar to adsorb formaldehyde. The release of formaldehyde is closely related to indoor temperature and temperature. With the increase of humidity in the air, the release of formaldehyde will greatly increase. The experimental results show that when the relative temperature in the air increases 10%, the indoor formaldehyde emission will increase by about 5%.

5, formaldehyde scavenger or formaldehyde dissolving enzyme

Formaldehyde scavenger "removes" formaldehyde through chemical reaction, and its essence is to reduce or transform the target substance into non-toxic substance. Formaldehyde can be oxidized to formic acid or reduced to methanol. Although the toxicity and irritation of these two substances are lower than formaldehyde, their toxicity still exists. For example, some strongly oxidized formaldehyde scavengers can oxidize formaldehyde, but they are easy to decompose by themselves. Spraying on the board will damage the wood within a few hours and lose its efficacy, so it is impossible to spray it all the time. In addition, the high concentration scavenger sprayed in the air will cause new pollution hazards to people. Other oxidants and reductants can not effectively remove formaldehyde, and will also introduce similar new pollution.

6, plant source air purification liquid

AQ air purification spray plant-derived biological preparation, using biotechnology, refined and extracted its effective components, such as sesquiterpene polyesters and alcohol compounds, from plants such as Populus euphratica, Robinia pseudoacacia, Melia azedarach, etc., and made a plant-derived compound purification liquid with exclusive patent formula, with remarkable and lasting sterilization effect. Tested by authoritative departments such as Hong Kong Polytechnic University, it is effective against Salmonella, Shigella, pathogenic Escherichia coli, Vibrio cholerae, Staphylococcus aureus, Legionella and SARS coronavirus. And effectively decompose toxic gases such as formaldehyde, benzene and TVOC. Instantaneous decomposition, no secondary pollution.

7. in addition to formaldehyde air purifier

The calculation of the purification efficiency of air purifiers is done in the laboratory, and it is measured under the condition of eliminating persistent pollution sources, which means that these data are obtained under certain conditions, so in actual use, the purification efficiency will be lower than that claimed by manufacturers. In essence, the air purifier only plays an auxiliary and remedial role. For example, in the case of indoor air pollution, the use of air purifiers can reduce the degree of pollution to a certain extent, but it does not mean that air pollution can be fundamentally eliminated.

8. Peels can't be in addition to formaldehyde, and air fresheners can't help in addition to formaldehyde.

The experimental results show that in the same sealed warehouse, the formaldehyde content of the experimental warehouse with grapefruit peel is ten times that of the blank warehouse. Because after putting grapefruit peel, the temperature of the experimental warehouse rises, and the amount of formaldehyde released greatly increases. Pomelo peel and pineapple can not only remove formaldehyde, but also increase indoor formaldehyde content. In the past, many people thought that after using grapefruit peel and pineapple, the taste of interior decoration was small, because the taste of fruit masked the smell of formaldehyde.

The principle of air freshener is the same as grapefruit peel and pineapple, except that the smell of harmful gas is covered by a smell, which has no removal effect at all. Moreover, the air freshener itself is also a chemical substance, which will cause some harm to health.