Everybody knows how bad the humidity gets in the Edwardsville, IL area during the summer. In those times when the air feels horrible, homeowners will use their air conditioner units to keep their homes feeling tolerable. You might have a couple of AC units or even an HVAC system. Following the size capacity limits of the room is the optimal way to get the most out of your window unit. When you have an air conditioning unit, you need to remember to keep it well kept ensuring it has a long useful life. One of the most important things to understand is your AC’s limitations when it comes to humid air.