Yigao household explains the safe concentration of

2022-07-22
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Formaldehyde should be well known to everyone. It is the main pollution source of home decoration. After the house is decorated, if it is not reduced to a reasonable concentration, it can't live in the new house, because it will endanger people's health

formaldehyde should be well known to everyone. It is the main pollution source of home decoration. After the house is decorated, if it is not reduced to a reasonable concentration, it cannot live in the new house, because it will endanger people's health. So what is the safe concentration of formaldehyde in the new house and what are the methods to control formaldehyde emission

in China's indoor air quality standards, the indoor safety concentration of formaldehyde is set at no higher than 0.08 mg/m3. This standard is just close to the minimum respiratory impact value of 0.07 mg. In addition, looking at the world, the indoor standard of formaldehyde in China is higher than that in Canada, which is 0.12 mg/m3, which is also higher than that in the United States, which is 0.4 mg/m3. Therefore, as long as the indoor formaldehyde concentration is lower than the limit value of the national standard, it can be considered to be relatively safe

keep indoor ventilation and convection. Because the clean outdoor wind will bring the formaldehyde continuously released from indoor homes out of the room, which will most effectively reduce the concentration of indoor formaldehyde and other pollutants. If ventilation and convection cannot be maintained, air purification products containing activated carbon, especially modified activated carbon, such as air purifiers, can be used. Activated carbon can more efficiently adsorb formaldehyde and prevent it from overflowing, while modified activated carbon can catalyze formaldehyde into carbon dioxide and water while adsorbing, which enhances the adsorption capacity of activated carbon and effectively reduces the indoor formaldehyde concentration. A large amount of activated carbon can be placed in areas where formaldehyde emission is concentrated indoors, such as wardrobe, cabinet and bookcase

to sum up, formaldehyde is an unavoidable thing for Chinese families, but through reasonable and effective treatment methods, the concentration of formaldehyde is greatly reduced and maintained at a safe level

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