The paint on Chenyang's interior walls smells bad when the air conditioner is on. The solutions are as follows:
1. Open windows for ventilation. You can use industrial fans to speed up indoor air circulation.
2. In summer, you can use the high indoor temperature to expel them. It just accelerates the release of formaldehyde, which will have some effect, and then aerates it.
3. Buy activated charcoal or plant some to absorb it.