You have to do this. If you don't do it, you will have health problems if you live under formaldehyde for a long time. In the last two days, it was magically discovered that Ye Duofen can spray some furniture besides formaldehyde spray, which I just discovered. The newly bought wooden wardrobe at home has a strong smell. I tried to spray it. The smell has been much less these days, and it has not caused any damage to the furniture. It really has many functions. You can download it.