Several methods for removing formaldehyde

1, ventilation ventilation method does not do too much explanation, that is, through the flow of air, the harmful gases are discharged to the outside, which is a single effective method, the only deficiency is the formaldehyde release cycle is long, generally three to 15 years, after the renovation of the new house idle for more than three years is obviously unrealistic. The ventilation method alone does not meet the requirements.

2, plant absorption a plant can inhale some harmful substances through photosynthesis, but the effect of such methods is extremely limited. The reasons are as follows: 1) plants carry out photosynthesis, generally inhaling some harmful substances during the day, and do not have this function at night. The law of human life is generally outdoor during the day and indoor at night, when people most need air purification, plants have no way to play a corresponding role. 2) The harmful substances absorbed by plants are extremely limited. The national standard for formaldehyde release value requirements of less than 0.08 mg/cubic meter, the vast majority of just decorated houses, formaldehyde is not less than 0.2 mg/cubic meter, and the absorption of formaldehyde efficiency is higher green flowers, the absorption of formaldehyde per hour is only 20 micrograms. In terms of a 100 square meters, room height of 3 meters, formaldehyde value of 0.2 mg/cubic meter room, at the same time need 1800 POTS of green plants, almost to fill the entire house space, in order to reduce formaldehyde to 0.08 mg, this is still in the case of sufficient light during the day, and to ensure that in the absorption process no longer formaldehyde release. In fact, formaldehyde is still being released in the furniture after decoration. Therefore, plants can only play an auxiliary role in the treatment of harmful substances such as formaldehyde and benzene.

3, activated carbon adsorption this move is really useful, the effect is very good. Activated carbon is cheap and practical, suitable for the majority of users. The initial use of activated carbon does have an effect, because the pores have adsorption potential, which is formed by the gravitational attraction of carbon molecules and adsorbed molecules, and the smaller the aperture, the stronger the adsorption potential. The physical adsorption of activated carbon can be absorbed thoroughly, and will not cause secondary pollution, in addition to formaldehyde, but also can absorb other harmful gases.

4, vinegar, black tea soak water to remove formaldehyde because formaldehyde is soluble in water, you can put a few more basins at home to absorb formaldehyde, or use vinegar or black tea soak water and other methods. It is a fact that formaldehyde is soluble in water, water, alcohol and ether, and the free formaldehyde in the air will dissolve into it after encountering water during the 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 the basin, and the specific surface area of the internal pores of 1 gram of activated carbon can reach as large as a football field. Even if you put a hundred POTS of water in the room, the adsorption effect is not much stronger than a small package of activated carbon. Therefore, the use of water, black tea, vinegar and other methods to absorb formaldehyde is obviously unrealistic. The release of formaldehyde is closely related to the temperature and temperature of the room, and the increase of humidity in the air will greatly increase the release of formaldehyde. The experimental results show that when the relative temperature in the air increases by 10%, the indoor formaldehyde emission will increase by about 5%.

5, formaldehyde scavengers or formaldehyde lysoenzymes formaldehyde scavengers rely on a chemical reaction method to "get rid of" formaldehyde, the essence of this method is to reduce or transform the target substance into a non-toxic substance. Formaldehyde, can be oxidized to formic acid, can also be reduced to methanol, the toxicity and irritation of these two substances is lower than formaldehyde, but their toxicity still exists. For example, some strongly oxidized formaldehyde scavengers can oxidize formaldehyde, but it is easy to decompose, spray on the board will damage the wood and lose effectiveness within a few hours, it is impossible to achieve "a spray forever." Moreover, high concentration of scavengers sprayed in the air will cause new pollution hazards to people. Other oxidants and reducing agents can not effectively remove formaldehyde, and will introduce similar new pollution.

6, Plant source air purification liquid AQ Air Purification spray plant source biological preparations using biotechnology, from the Italian black poplar, mountain robinia, azedaria and other plants refined extraction of its effective components of sesquiterpene polyesters, alcohol compounds, and exclusive patent formula prepared into plant source compound purification liquid, bactericidal effect is significant, lasting, by the Hong Kong Polytechnic University and other authoritative departments testing, The kill rate of salmonella, Shigella, pathogenic Escherichia coli, Vibrio cholerae, Staphylococcus aureus, Legionella and sars-coV, human influenza virus, avian influenza virus and other common bacteria, fungi and viruses within 60 minutes is as high as 99.9%. And effectively decompose formaldehyde, benzene, TVOC and other toxic gases. Instant decomposition, no secondary pollution.

7. All the purification efficiency calculations of the air purifier are completed in the laboratory, and are measured in the case of excluding persistent pollution sources, that is to say, these data are obtained under specific conditions, so in actual use, the purification efficiency will be lower than that claimed by the business. In essence, the air purifier only plays a supplementary and remedial role, in the case of indoor air pollution, the use of air purifier can reduce the degree of pollution to a certain extent, but it does not mean that it can fundamentally eliminate air pollution.

8. The peel can not remove formaldehyde, and the air agent does not help to remove formaldehyde. The experimental results show that in the same sealed bin, the formaldehyde content of the experimental bin placed with grapefruit peel is ten times that of the blank bin. Because after the grapefruit peel is put in, the temperature of the experiment chamber increases, and the amount of formaldehyde released greatly increases. Grapefruit peel, pineapple, etc., not only can not remove formaldehyde, but also increase the formaldehyde content in the room. In the past, many people felt that after the use of grapefruit peel and pineapple, the indoor decoration taste was small, because the taste of fruit covered up the taste of formaldehyde. The principle of air agent is the same as that of grapefruit peel, pineapple, etc., but it covers up the taste of harmful gases with a smell, and it cannot have any removal effect at all. And the air agent itself is also a chemical, and it will be harmful to health.

The air purifier only plays an auxiliary and remedial role.

It is best to combine the actual situation to choose several methods