1. The surface coatings of unqualified school furniture may contain antimony, arsenic, barium, cadmium, chromium, lead, mercury, selenium and other harmful elements to the body. Bad paints also contain carcinogens such as benzene, toluene, xylene, ethyl acetate, and free formaldehyde in leather and textile fabrics. These pollutants contain different degrees of toxicity, which can cause serious harm to children's body, even irreversible toxicity.
2. The unqualified classroom furniture also includes the shape or structure of the furniture. For example, the design of water chestnut, sharp edge and protruding may cause safety hazards to children.
3. Hardware fittings in school furniture also have standard requirements. Hinges of school furniture need to be damped to prevent children from clipping their hands when opening and closing, and slides of drawers of students'desks, chairs and drawers also need to ensure safety. If the slides of drawers are not safe, they may cause drawers to slip and hit children.