How to remove formaldehyde from Zhengzhou new house

It can be removed by ventilation, activated carbon, plants, air purifier, scavenger, photocatalyst, etc.

1. Ventilation method does not need too much explanation, that is, it uses the flow of air to discharge harmful gases outdoors. This is a simple and effective method. 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. So simple ventilation can't meet the requirements.

2. Activated carbon is a product widely used to remove formaldehyde. Because of its internal structure, its adsorption capacity is very small. But the problem with activated carbon is that the saturation period is only about 20 days. After 20 days, it no longer has adsorption capacity, and it cannot effectively adsorb formaldehyde, but it is in danger of secondary release.

3. Plant adsorption, indoor pollution In the light and moderate pollution environment, more plants can be planted indoors, which can purify the air, such as green radish and chlorophytum can also adsorb formaldehyde. The disadvantage is that the processing capacity of green plants is too small, which can only play an auxiliary role.

4. Air purifier, many people also like to use air purifier. The air purifier does have a certain effect, but the effect becomes worse after a period of use, because the principle of the air purifier is the same as that of activated carbon, and it is easier to saturate. Disadvantages: expensive, easy to saturate and waste electricity.

5. Scavengers and photocatalysts. Formaldehyde scavenger "removes" formaldehyde through chemical reaction. The essence of this method is to reduce the toxicity of the target substance or convert it into a 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 highly oxidizing formaldehyde scavengers can oxidize formaldehyde, but they are easy to decompose by themselves. Spraying on the board will damage the wood, and it will be ineffective within a few hours. It is impossible to "spray it to the end". 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.

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