In the cold winter, the doors and windows of our citizens' homes are generally tightly sealed. The reporter of Liansheng Heating Network reminded everyone that due to the poor indoor ventilation and ventilation during the heating period, the increase of formaldehyde concentration will cause great harm to human health.
After heating in winter, most people are reluctant to open windows and ventilate frequently. The air does not convect a large amount of formaldehyde in the room. At the same time, the indoor temperature rise during heating also accelerates the rapid release of formaldehyde. Long-term exposure to low-dose formaldehyde is likely to cause skin and respiratory diseases, and even serious illnesses such as infertility, fetal malformation, and leukemia.
The following are five ways to effectively remove formaldehyde during the heating period summarized by the reporters of Lianyi Heating Network:
Method 1: Activated carbon adsorption method
Solid activated carbon has many characteristics of pores, and has strong adsorption and decomposition effects on harmful substances such as formaldehyde. The smaller the particles of activated carbon, the better the adsorption effect. However, depending on the size of the space, the amount of activated carbon placed varies. In addition, the activated carbon needs to be replaced after it has been adsorbed to a certain extent. Although the effect of activated carbon is good, it does not completely remove formaldehyde from the air.
Method 2: Plant Absorption
Plants have a strong ability to absorb formaldehyde, such as cactus, spider plant, aloe vera, ivy, iron tree, chrysanthemum and so on. The absorption of formaldehyde by plants can only play an auxiliary role in the process of purifying the air. If the formaldehyde content in the air is too high, it may even cause the death of the plant itself. In general, large-leaf and vanilla plants have better effects on formaldehyde absorption, such as spider plants and tiger-tail orchids. Therefore, the reporter of Liansheng Heating Network suggested that you can raise more green plants in the mild indoors.
Method 3: Chemical purification method
At present, there are two kinds of formaldehyde trapping agents on the market, one is to purify the air by neutralizing formaldehyde and generating harmless substances; the other is to purify the air by blocking formaldehyde and preventing the volatilization of formaldehyde. At present, some people think that formaldehyde blocking agent completely limits the volatilization of formaldehyde. In fact, formaldehyde blocking agent can not completely block formaldehyde, and can only reduce the release of formaldehyde.
Method 4: Photocatalyst decomposition
The catalyst in the photocatalyst generates negative ions and hydroxyl radicals with oxygen and moisture in the air under the stimulation of light, can oxidize and decompose various organic pollutants and inorganic pollutants, and finally degrade into carbon dioxide, water and corresponding acid. Such as harmless substances, so as to achieve the role of decomposing pollutants and purifying the air. As a new type of material, photocatalyst will not cause secondary pollution in theory, but because the processes of photocatalyst production by various manufacturers are different, it cannot be said that it will not cause secondary pollution. In addition, the use of photocatalyst is complicated, and it is generally provided by a specialized service company.
Method 5: Purifier treatment
The company's air purifiers are divided into negative ion type, ozone type, filter adsorption type, static electricity type and photocatalyst type. Different air purifiers have different working principles. For example, negative ion type is to purify indoor air by generating negative ions, decomposing odor in the air and attached smoke. However, air purifiers are generally only effective when used in a closed space. If the air purifier is used in the case of opening a window, it is not only ineffective but also wastes electricity.