What's the matter with water vapor on the indoor surface of the whole house?

Because of the weather, the weather has turned warmer these days, with high temperature and humidity. However, indoor objects are generally lower than outdoor objects because of their low temperature. Because of the relatively low temperature, things with smooth surfaces are more likely to adsorb water molecules, resulting in surface fogging.

At this time, doors and windows should be closed as much as possible when the temperature is high during the day, and windows should be opened for ventilation when the temperature drops and there is a breeze at night. It is also because the weather is getting warmer in spring, and this time is generally not chosen for decoration.

It must have a little effect on the wallpaper. Wipe off the surface moisture with a dry cloth, and see if it affects the pasting effect of wallpaper after a while. If so, fix it again.