Pros: Energy Star-certified, performed well in cooling tests, easy to install, quiet operationĬons: Unable to access smart features, unimpressive CEER rating, minimal warranty

Extras: Dehumidifying, fan, remote control, foam seals, side curtain insulation, window security brackets, delay on/off, clean filter indicator.

Window opening requirements: 13-⅜ inches vertical and 26-1/16 to 39-¼ inches wide.

The GE AHY08LZ EZ Mount Window Air Conditioner is your best bet if you're looking for a cheap way to cool your room, with its low-decibel output, outstanding cooling, and easy installation. Even on low, our sound meter registered 54.8 decibels, which is quite noisy. Our only complaint is that it was one of the loudest ACs in our tests, registering 56.3 decibels on high, which is a little bit louder than the average refrigerator. It used 0.4 kWh of energy while we blasted it on high for one hour. The Friedrich Chill Premier is Energy Star-certified, and in our tests, it was in the middle of the pack in its power consumption. It was also easy to install, taking only 20 minutes plus an extra 10 minutes to install and connect the smartphone app (available for iOS and Android), which lets you set schedules and control your AC from anywhere. During the one-hour testing period, the temperature dropped 5.3 degrees Fahrenheit. Of the 10 units we tested for this guide, the Friedrich CCF08A10A Chill Premier Smart Window Air Conditioner did the best job of cooling our 650-square-foot test room. Pros: Did the best in our cooling tests, smart connectivity with a useful app, fits a wide array of window sizes, five-year warranty on sealed refrigerant system, Energy Star-certifiedĬons: One of the loudest units in our tests

Extras: Dehumidifying, fan, remote control, foam seals, side curtain insulation, window security brackets, smart home compatibility.

Warranty: 1 year + 5 years for sealed refrigerant system.

Combined Energy Efficiency Ratio (CEER): 12.

Window opening requirements: 14.5 inches vertical and 23 to 36 inches wide.

If you have a medium-sized room, the Friedrich CCF08A10A Chill Premier Smart Window Air Conditioner is your best option with its impressive cooling abilities, smart connectivity, and long warranty.

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