Generally speaking, furniture contains formaldehyde more or less, and wood adhesives also contain formaldehyde. However, according to E 1 standard, the formaldehyde content of oak furniture is lower than 1.5mg/L, which is strictly E0.

Although many oak furniture enterprises are under the slogan of environmental protection and low carbon, few can really do it. Many oak furniture are not pure solid wood, only the main frame of furniture is pure solid wood, and some auxiliary parts such as drawers and partitions are composite plates.