China Consumer News (Reporter Yue Gangju) The smog weather has been raging in North China for a week. According to the Ministry of Environmental Protection, most areas in central and eastern China are covered with haze, covering an area of about 654.38 0.43 million square kilometers, accounting for 654.38 0.5% of the total land area. Twenty cities in Beijing, Tianjin and Hebei are heavily polluted. Among them, the air quality in Beijing, Shijiazhuang, Xingtai, Tangshan and Baoding is the highest level of serious pollution, and other 15 cities are heavily polluted. The smog has made people in these areas afraid to open windows for ventilation. The problem faced by residents who have just moved into new homes is even more serious: "Open windows to absorb smog and close windows to absorb formaldehyde." So how to remove indoor air pollution, especially decoration pollution? In addition to formaldehyde, which method is the most effective? People have different views on this, and there are many misunderstandings. Recently, China Consumer News reporter conducted an in-depth investigation on this hot topic.
Window ventilation: simple and effective, but the conditions are limited
Windowing ventilation means that harmful gases are discharged outdoors through the flow of air. This is a simple and effective method. Under the condition of constant ventilation after home decoration, the indoor formaldehyde content can generally drop to the standard value in about 20 days. Moreover, this method has basically no cost, and the owner can only do it by hand.
However, this method is easily restricted by the weather, for example, you can't open the window for ventilation in foggy days; High-rise residents can't open the window when they encounter strong winds above level 4 or 5; Owners who haven't moved in are worried that the rain will soak the floor and furniture at home and there is no way to open the window.
It is understood that formaldehyde is a low-boiling substance, and its volatilization point is 19℃. In autumn and winter, if the indoor temperature is too low, formaldehyde will accumulate in building materials. In the winter heating season, most people in the northern region are reluctant to open the window often because of the cold weather, which makes a large amount of formaldehyde accumulate indoors and cannot be dispersed. At the same time, due to heating in winter in the northern region, the indoor temperature rises rapidly, accelerating the release of formaldehyde. According to the data released by China CDC, the indoor formaldehyde exceeding the standard rate in winter is as high as 73%.
In addition, it should be noted that there are three existing states of formaldehyde: free state, adsorbed state and bound state, among which only the free formaldehyde can be volatilized by ventilation, while the formaldehyde in furniture panels is not easy to be removed by ventilation because of its long release latency, so other methods must be adopted.
Lvzhi: Not very powerful.
Many people think that green plants have the ability to absorb formaldehyde, such as cactus, chlorophytum, aloe, ivy, cycad, chrysanthemum and so on. Many people who have just finished decorating their houses will buy some green plants and put them at home, thinking that this will not only help in addition to formaldehyde, but also serve as decoration at home. In fact, this understanding is erroneous. In fact, green plants can only help absorb formaldehyde. If the indoor formaldehyde content is too high, green plants can not only absorb formaldehyde, but also may be poisoned by formaldehyde.
It took seven years to develop Vishakasone, a unique indoor environmental protection decoration material which can adsorb and decompose formaldehyde, remove fog and haze.
① Shanghai Kasongshi is beautiful in appearance and has decorative and ornamental functions.
② Shanghai Kaolin has a permanent negative charge, which can adsorb PM2.5 to remove smog.
③ Shanghai Kaolin absorbs and decomposes indoor harmful gases such as formaldehyde and benzene, and the decomposition products are carbon dioxide and water.
Shanghai Kasongshi is an indoor decoration material that can purify the air. Safe, pollution-free and recyclable. It has the function of adsorbing and decomposing indoor harmful gases such as formaldehyde and benzene, with negative charge, and can adsorb PM2.5 and smog. Its appearance is similar to stone and wood, and it is brightly colored and can be carved. Can be used as wall decoration, such as background wall, partition, screen and so on. Used as decorative materials, such as murals, screens, etc.
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