Just learning photography, do I need to buy a moisture-proof box for my camera?

Hello, look at the specific area. If you are in an area with high humidity (above 80%) all the year round, and you use a high-end lens. There must be moistureproof box. The humidity in the north or the west is not necessarily low.

When the temperature changes, the water vapor in the air will condense on some relatively cold objects (such as glass lenses), which may become moldy for a long time and produce mildew spots on the lenses. This is fatal to the camera.