室内空气中甲醛主要来源于木制家具、化纤塑料制品、涂料和粘合剂。例如我们木制板材中的人造板，绝缘材料、地毯、壁纸、防水材料以及尿醛胶等。其中人造板就是将废木材破碎成为纤维以后，再加进粘合剂制造而成，而普通的粘合剂中常含有一定的甲醛。
Formaldehyde in indoor air mainly comes from wooden furniture, chemical fiber plastic products, coatings and adhesives. For example, our wood-based panels, insulation materials, carpets, wallpaper, waterproof materials and urea formaldehyde glue. Among them, wood-based panel is made by crushing waste wood into fiber, and then adding adhesive. The ordinary adhesive often contains a certain amount of formaldehyde.
根据甲醛来源不同，甲醛残留时间长短不一，一般来说，涂料和化纤塑料制品的甲醛多附着在我们的装修物的表面，挥发起来相对容易，甲醛扭王块模具 高铁遮板模具 阶梯护坡模具 拱形护坡模具 卵形槽模具 保定室内设计培训 保定平面设计培训残留时间就较短，一般半年或者过1个夏天基本上就没有残留了；而人造板中的甲醛，由于深藏在我们的密致的板材当中，短则3年，长的可以到8年才能挥发干净。
According to the different sources of formaldehyde, the duration of formaldehyde residue varies. Generally speaking, the formaldehyde of coatings and chemical fiber plastic products mostly adhere to the surface of our decoration, volatilizing relatively easily, and the duration of formaldehyde residue is relatively short. Generally, there is no residue in half a year or one summer. However, the formaldehyde in wood-based panels is short because it is deeply hidden in our dense boards It will take 3 years, and it will take 8 years for it to volatilize.