Models, of course, are for display, not everywhere. It is suggested that LZ put the model in a showcase, glass cabinet and the like and lock it. Its function is to prevent dust. I usually look through the glass. The showcase should not be exposed to direct sunlight. If LZ is dry, you can go to the jewelry store showcase to learn ... put a small cup of water, and I don't understand the detailed principle. There is no special showcase, but there are bookcases at ordinary times, right? For example, in the eyes of several people upstairs, on the surface, it is necessary to get something protective, and LZ can try it if he wants. I remember that there seems to be "protective paint" sold in the model shop, but it is not common (not easy to buy). Most of these things are sprayed by hand, which is very convenient to use like perfume. If LZ model shop sells it, try one.