What should I do if the room is damp and the walls are moldy?

First of all, find out the reason why the wall is wet. If it is caused by water leakage, you must find the master to deal with it in time. If it is because of the weather, the following measures can be taken: intermittent ventilation: the afternoon is the best time, and the doors and windows facing south or southeast are closed in rainy days to reduce water vapor entering the room. At noon, the outdoor air humidity is at the highest value, so it is not suitable to open the window. In the afternoon or evening, when the climate is dry, open the window to adjust the indoor air. Lime absorbs moisture: In rainy days, you can wrap quicklime with cloth or sack and put it indoors to keep the indoor air dry. Air conditioning dehumidification: simpler than the first two methods, but power consumption. It is suggested to use other environmental protection and moisture-proof methods to save energy. Practical moisture-proof small object moisture-absorbing box: necessary for wardrobe dehumidification. Generally, the common absorbent products on the market are mainly composed of calcium chloride particles, and most of them are added with essence, so they have the functions of dehumidification, fragrance, mildew prevention and deodorization. Moisture absorption boxes are mostly used for moisture absorption in wardrobes and shoe cabinets. When you use it, just put it in the cupboard. Absorbent bag: the best effect is confined space. The principle of water-absorbing bag is similar to that of water-absorbing box, but the contents are mainly water-absorbing resin, which becomes jelly-like after absorbing water and cannot be easily broken into pieces. It has a wider range of applications. Besides clothes, leather goods, stamps, cameras, pianos, computers, audio-visual equipment, etc. Can seek its help in dehumidification. If placed in a closed space, the moisture absorption effect is better. The thorough solution: shovel off the wall skin, make waterproof treatment, and then scrape putty and brush paint. Temporary method: Apply 84 disinfectant bleach solution to moldy places (brush several times) to lighten the color of moldy spots. The above methods are for reference only. You can choose a dehumidification method that suits your home.