When it rains a lot, things get a little uncomfortable… to say the least. Humidity is part of that heat, and it can lead to mold, insects, peeling paint or wallpaper, and even rotting wood. It’s important to understand how dehumidifiers work in order to determine which kind you should buy.

How dehumidifiers work

Depending on temperature, air can hold water vapor. The maximum amount of water that 35 cubic feet of air can hold at 68°F is about .6 oz. When that is the case, it’s considered 10...