You’ve heard people say, “It’s not the heat, it’s the humidity.” And no doubt you’ve noticed that high humidity can make you feel the impact of the heat even more. There’s a simple, scientific reason for that: air that’s already saturated with moisture can’t absorb any more. Since your body cools itself by perspiring, allowing air to absorb some of your heat with that moisture, you’ll overheat faster when it’s humid.
This overheating caused by humidity won’t just be uncomfortable for you. It can have other impacts on your home and your HVAC system! What you need is to keep your indoor humidity at a low enough level. What level? How can you do it? Why do you need to? We’ll explain it all.