Formaldehyde is a carcinogen. Long-term intake will lead to pathological changes and further carcinogenesis. When the inhaled formaldehyde concentration is too high, it will cause some bronchial diseases, such as asthma. If it comes into direct contact with the skin, it will cause skin allergic reaction, which will lead to skin necrosis in severe cases.

Inhaling formaldehyde for a long time in an unventilated room will lead to headache, nausea, chest tightness and other conditions, and may lead to poor memory. Pregnant women may ingest formaldehyde during pregnancy, leading to abnormal fetal development and even fetal death.

Long-term inhalation by men will lead to sperm deformity, death, decreased sexual function, severe leukemia, pneumothorax, infertility and so on. The harm of formaldehyde is considerable, so the newly renovated house in in addition to formaldehyde.

Sources of formaldehyde: all kinds of man-made board, particleboard, density board, fiberboard, plywood, etc. ) Because urea-formaldehyde resin glue is used, it can contain formaldehyde. Adhesives are used in the production of new furniture, the decoration and laying of walls and floors. Where adhesives are used in large quantities, formaldehyde will always be released.