Methods for removing formaldehyde from new homes include ventilation, plant-derived air purifiers, formaldehyde scavengers or formaldehyde-dissolving enzymes, activated carbon adsorption, water, vinegar, and black tea soaked in water to remove formaldehyde.
1. Ventilation method
The ventilation method does not need to be explained too much. It is to discharge harmful gases outdoors through the flow of air. This is a simple and effective method. The only shortcoming is The formaldehyde release cycle is long, usually three to fifteen years. It is obviously unrealistic to leave a new house empty for more than three years after renovation. Therefore, ventilation method alone cannot meet the requirements.
2. Plant-derived air purification liquid
AQ air purification spray plant-derived biological preparation uses biotechnology to refine and extract from plants such as Italian black poplar, mountain locust, and pink flower neem. Its active ingredients are sesquiterpene polyesters and alcohol compounds, and are formulated into a plant-derived compound purification liquid with an exclusive patented formula. The bactericidal effect is significant and long-lasting. It has been tested by authoritative departments and is effective against Salmonella.
Shigella, pathogenic Escherichia coli, Vibrio cholerae, Staphylococcus aureus, Legionella and SARS coronavirus, human influenza virus, avian influenza virus and other common bacteria, fungi and viruses 60 minutes The internal killing rate is as high as 99.9%. And effectively decompose formaldehyde, benzene, TVOC and other toxic gases. Decomposes instantly without secondary pollution. Can be eaten or eaten.
3. Formaldehyde scavenger or formaldehyde-dissolving enzyme
Formaldehyde scavenger "removes" formaldehyde by chemical reaction. The essence of this method is to reduce the toxicity of the target substance or Converted into non-toxic substances. Formaldehyde can be oxidized to formic acid or reduced to methanol. Although the toxicity and toxicity of these two substances are lower than those of formaldehyde, their toxicity still exists.
Spraying on wooden boards will not only damage the wood, but also lose its effectiveness within a few hours. It is impossible to achieve "one spray and forever". Moreover, high-concentration scavengers sprayed in the air will cause new pollution hazards to people. Other oxidants and reducing agents cannot effectively remove formaldehyde, and will introduce similar new pollution.
4. Activated carbon adsorption
Activated carbon is indeed effective in the early stages of use, because the pores have adsorption potential, which is formed by the attraction between carbon molecules and adsorbed molecules. The smaller the pore size, the smaller the pore size. The stronger the adsorption potential. In addition, according to the theory of molecular motion, all objects are composed of molecules or atoms, with gaps between them. At the same time, they are in a state of never-ending and irregular thermal motion, and molecules collide with each other frequently.
The maximum temperature of sunlight is only about 50 degrees Celsius, and it can only evaporate water. The pollutants adsorbed in activated carbon cannot be completely volatilized, and the adsorption function of the carbon cannot be completely restored. Therefore, exposure to sunlight is more about removing the moisture in activated carbon. Its adsorption properties cannot be restored.
Activated carbon generally has a certain adsorption effect on benzene, but the adsorption effect on formaldehyde is not obvious. Generally, the adsorption capacity of activated carbon will weaken after one month.
5. Soak water with water, vinegar, and black tea to remove formaldehyde
Many people said that since formaldehyde is soluble in water, you can put more water basins at home to absorb formaldehyde. , or use vinegar or black tea to soak in water.