The living room wallpaper has a large area of mold, and the room will not use the same product, glue

There are many reasons why wallpaper can become moldy.

First of all, wallpaper is a paper product, and the paper product itself is easy to absorb water, and the risk of mold after moisture is quite high.

Secondly, the glue of wallpaper has a high moisture content, especially now that environmental protection is advocated, and the application of water-based materials increases the risk of mold.

In addition, the humid environment is also one of the causes of mold. However, judging by your description, you can rule out the problem of wallpaper and glue. That is caused by the humidity in the living room and hallway, which may be too humid or not properly drained.

Dispose of the moldy wallpaper, see if the wall is moldy, the wall is not serious, you can spray some anti-mildew agent to deal with it, and if it is serious, you should shovel off and re-paint the wall. If you continue to use wallpaper, it is recommended to check the drainage first to see where it is not done, and pay attention to the selection of materials, you can use glue and wall paint that have been treated with mildew.

Also, pay attention to keep the room dry, don't be too wet when mopping, and pay attention to ventilation at all times. In the humid season, consider putting some quicklime in a damp place such as a corner of a wall.

It may be that there is a leak somewhere in the living room, and there is a large area of mold, which is generally the presence of moisture.