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How to identify the environmental protection grade of decoration materials was first formulated by foreign plate enterprises as E2 and E 1 standards, and was later cited as European standards. Then Japan came up with a higher F4 star standard, and China came up with a national standard, because it is difficult for most domestic enterprises to meet Japan's F4 star standard, while China's highest E0 star standard actually corresponds to Japan's F3 star standard. The current national standard in China is the limit level of E0≤0.5mg/L marked in the 2004 national standard "Plywood" (GB/T9846. 1-9846.8-2004), and the national standard E0 is the highest standard of formaldehyde emission limit in wood-based panels and their products in China. Followed by e 1 ≤ 1.5 mg/L, maybe just looking at these two numbers doesn't feel anything. Let's make a comparison. The formaldehyde standard stipulated in the current sanitary standard for drinking water in China is ≤0.9mg/L, which is higher than the tap water standard we drink. You can feel it. The words E 1 or E0 will be found on the side of the plate used in the decoration process, as long as it is a nationally certified material. At present, in order to reduce the cost, some furniture manufacturers choose non-environmental protection materials, and the edge sealing of plates is not strict during processing, which often causes furniture to pollute indoor space. E 1 Environmental protection standard is a national health standard and a mandatory "safety standard line". Windows and doors should be opened for ventilation for a period of time to speed up the release of harmful substances and shorten the release period. After check-in, we should also pay attention to ensure that there is enough fresh air indoors to effectively avoid indoor environmental pollution. E0 standard is the highest international health standard at present. The formaldehyde content of 0.5mg/l is already a very safe numerical standard. We should attach great importance to environmental pollution in decoration. Environmental protection decoration should fully consider whether the materials are environmentally friendly, whether the dosage is reasonable, whether there is a dead angle in indoor air circulation, and whether there will be light pollution. Relevant data show that the formaldehyde content of drinking water is 0.9mg/l, which means that the formaldehyde content of E0 standard is less than that of drinking water. For environmental protection decoration, please buy products with safety and health certification marks on the products, and ask the dealer for the test report that meets the new standards when purchasing, so be sure to check its quality certification or its national environmental protection grade when selecting plates. There are different decoration companies in the market. When consumers choose, they should carefully examine their qualifications and choose a formal home improvement company to ensure environmental protection decoration. Precautions for choosing environmental protection decoration materials First of all, when choosing wall decoration materials, consumers should try not to use wooden boards containing harmful substances with excessive formaldehyde in a large area. Wallpaper and paint are commonly used materials for home wall decoration. Some owners like to decorate the wall with plates, but there are many harmful substances in the plates, which are not as environmentally friendly as wallpaper. Owners want to meet the requirements of quality home, they can use different materials of wallpaper, such as cotton, linen, silk and other natural wallpaper as the base material, which is both environmentally friendly and highlights the grade. Secondly, the choice of ground materials. When decorating, there are many kinds of floor materials, such as tiles, natural stones, wooden floors and so on. The pollution of floor tiles is small, so it is no problem to choose materials that are qualified after inspection and do not contain radioactive elements. There are many kinds of wood floors, such as solid wood flooring, solid wood composite board and reinforced composite board. Jin Haibo explained: "The harmful substances of wood floors include two aspects. One is that the glued floor contains too much free formaldehyde, and the other is that various organic solvents are used in the painting process, which will emit gases harmful to the human body. "