Size matters when you’re buying a window air conditioner. An air conditioner that’s too small will struggle to keep a room at a comfortable temperature. A model that’s too big will cool a room too ...

When the mercury rises and the air stays hot and humid even after the sun goes down, you’ll need to find a way to stay cool. Many older homes don’t have whole-house air conditioning systems, which ...

These ACs from Frigidaire, GE, LG, and Midea can keep things cool and quiet while you sleep U-shaped air conditioners like this Midea can run quieter because they use your window to block out noise.

If you’re strategizing how to keep cool in what feels like one of the hottest summers to date, we recommend opting for an air conditioner that’s effective but also energy-efficient. Window AC units ...

Looking for more ways to cool off? Check out CNN Underscored’s Guide to Beating the Heat for the products that help us cope with high summer temperatures. The best window air conditioners can turn a ...

The difference between a good air conditioner and a great one isn’t just how quickly it cools a room—but also how quietly it does so. On a hot, still summer night, a quiet air conditioner may be the ...

Like clothing, an air conditioner must be the proper fit for it to be of value. If you buy one that’s too small or too large, you won’t be happy — or comfortable. This article runs through the ...