You probably don’t spend much time thinking about the compressor in your air conditioner, at least as long as it’s pumping out cool air. But if you’re in the market for a new window AC this season, ...

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.

The MrCool DIY 4th Gen DIY-12-HP-WM-115C25 is part of the Air Conditioners test program at Consumer Reports. In our lab tests, Ductless Air Conditioners models like the DIY 4th Gen DIY-12-HP-WM-115C25 ...