Whether the furniture is environmental protection or not is what people are most concerned about. Its environmental protection index is reflected in the formaldehyde emission volume, and unqualified emission means that the detected value is greater than the standard specified value, which shows that enterprises don't strictly control the procurement and use of main raw material man-made boards, and the quality of adhesives used in the production process is not up to standard or they are overused. Furniture with formaldehyde exceeding the standard is the "culprit" of indoor air pollution and endangering human health. Apart from environmental protection, the furniture manufacturing process is also a key factor in ensuring quality. In plate furniture, the board sealing is the focus of furniture quality. Some furniture door panels or box bodies' edges are not tightly sealed and extremely easy to fall off. Worse still, some furniture exposed edges have not been treated with edge sealing, or the boards inside the box are not sealed. This is the result of some small manufacturers with irregular production saving materials and reducing procedures to reduce costs.