The maintenance of the salt wall is straightforward. As long as it is kept dry, it would help if you only dust it off when it appears dusty. You can do this with a brush, broom, or vacuum cleaner. The salt is quite complex and will not be damaged by this type of cleaning. If you need to disinfect the wall, spray it lightly with disinfectant and dry it. Remember that salt tiles melt when they are wet. It takes a lot of water to make a noticeable difference, but you should be careful when getting the tiles wet.
If salt crystals are deposited on the salt tiles, this deposit is caused by excessive humidity in the room. You should keep the humidity below 60 percent in the area where the salt tiles are located. The crystals can be cleaned off the tiles using the above method. If you expose the tiles to moisture for a long time, they will be damaged and should not be used.