The environmental protection grade of solid wood panels is a crucial indicator of whether their formaldehyde emissions meet health standards, directly impacting indoor air quality and the health of residents. Currently, the environmental protection grades of solid wood panels on the market primarily reference international and domestic standards. Common classifications include E0, E1, E2 (E2 has been phased out in some countries), and even higher standards such as Super E0.
Environmental Protection Grade Classification and Standards
E2 Grade: Formaldehyde emission ≤ 5.0 mg/L (This standard has been phased out in some countries due to its high emission levels; long-term exposure may have negative health effects).
E1 Grade: Formaldehyde emission ≤ 1.5 mg/L. This is a widely recognized "safe standard" both domestically and internationally, suitable for interior decoration and meeting the environmental requirements of most countries.
E0 Grade: Formaldehyde emission ≤ 0.5 mg/L. Stricter than E1, commonly found in high-end panels, suitable for scenarios with extremely high environmental protection requirements, such as children's rooms and hospitals.
Super E0/F4 Star: Some brands or regions adopt stricter standards, such as Japan's F4 Star (formaldehyde emission ≤0.3mg/L), or the company's own "Super E0" (even lower emission), which is usually used for export or high-end custom furniture.
