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The younger generation has a stronger concern and recognition for environmental protection, and is more focused on creating a healthy environment in their home lives.
When buying home furnishing panels, you'll see terms like E1, European Standard, CARB, E0, ENF, and F-star certification. But if you're unfamiliar with these environmental ratings, choosing panels can be confusing. You won't know whether your living space is healthy enough, and whether the panel furniture you live with day in and day out will give you peace of mind.
Currently, the common formaldehyde emission standards in my country are: E1, E0, and ENF three indicator levels, but the scope of application of these three indicators is different.
On October 1, 2021, my country implemented new environmental regulations, classifying formaldehyde emissions into three levels: E1, E0, and Enf. The E1 limit (≤0.124 mg/m³) is the national standard for formaldehyde emissions from artificial board products and serves as the entry-level level for interior decoration. If the emission level exceeds 0.124 mg/m³, it is theoretically not permitted for interior decoration. This means that if a board is to be placed in a consumer's home, it must meet this limit.
my country's previous formaldehyde standards were introduced from Europe. The European standards are basically E1 level. The standard values of European standard E1 and national standard E1 are exactly the same, so if you use European standard E1 as national standard E1, it is also a threshold-level product.
E0 grade, with a formaldehyde emission standard of 0.050mg/m³, is the most popular product on the market. Its affordable price has boosted its sales, making it perfectly suitable for families without children. ENF grade, which means no formaldehyde is added during the production process, has a formaldehyde emission standard of 0.025mg/m³. This highly authoritative standard, far exceeding E0, is used to categorize the formaldehyde emissions of various wood-based panels and their products for indoor use. ENF environmental standards can be used as a guide when purchasing various types of wood-based panels, including particleboard, plywood, blockboard, veneered wood-based panels, wood flooring, wood wall panels, and wood doors.
CARB standards are US certification standards that also have specific requirements for production processes. They are divided into P1, P2, and the highest level, NAF. P1 is equivalent to E1, P2 is close to E0, and the highest NAF is called Formaldehyde-Free Exemption. For example, NAF requires that no formaldehyde-containing substances are added to the board at any stage of the production process. However, when standardized to ppm (parts per million of formaldehyde in air), it is still lower than my country's Enf level.
The F star rating is Japan's standard system for free formaldehyde, with four star evaluation criteria, which are gradually stricter from one star to four stars. The highest internationally certified environmental protection standard is "F4 star", which not only has requirements for formaldehyde, but also requires environmental certification for the entire factory production system, including all aspects of raw materials, production processes, and finished products.
In terms of free formaldehyde indicators, F4 star is the highest standard in the world. The average formaldehyde emission limit cannot exceed 0.3 mg/L, and there is no restriction on the area of use.
Waterborne Ketian, leveraging its core waterborne polymer technology, has independently developed a patented third-generation waterborne polyurethane formaldehyde-free adhesive (Patent No.: ZL 2015 1 0392125.8). This technology replaces organic solvents with water and has been successfully applied to the production of plywood, blockboard, eco-friendly boards, wood flooring, particleboard, and KT high-polymer eco-friendly boards. The performance of these products meets the quality standards for formaldehyde-free boards and flooring. The boards boast high strength, high water resistance, high flatness, no added formaldehyde, no odor, and no deformation, fully complying with formaldehyde-free board standards. Their environmental rating far exceeds national standards, meeting the new ENF national standard, European E0, Japanese F4-star formaldehyde limits, and US CARB formaldehyde limits, meeting export standards. This initiative has achieved the detoxification and industrialization of home improvement materials such as waterborne coatings, formaldehyde-free boards, and non-toxic custom furniture, providing consumers with a ready-to-move-in, non-toxic home improvement experience.