10 Best Room Air Conditioners 2025 in the United States

The Midea 12,000 BTU Smart Inverter Air Conditioner efficiently cools rooms up to 550 square feet, featuring inverter technology that helps reduce electricity costs with an Energy Star rating and a SEER of 13.3. It offers heating and dehumidifying functions, making it practical for multiple seasons, though the heating function is not effective below 41°F. The unit operates quietly at about 45 dB, making it suitable for bedrooms or workspaces.

The BLACK+DECKER 10,000 BTU Portable Air Conditioner is designed for rooms up to 450 sq. ft., making it a good choice for medium-sized bedrooms or living spaces. Its cooling capacity at 10,000 BTU is solid for this size, but note that the effective seasonal cooling (SACC) is lower at 5,800 BTU, which may affect efficiency in very hot conditions. The unit has a respectable Energy Star 5-star rating and a SEER of 6.7, meaning it will be reasonably energy-efficient compared to some older models, helping to keep electricity bills in check. Noise-wise, it runs at about 52 dB, which is fairly average for portable ACs—noticeable but not too disruptive during daily use or sleep.

The BLACK+DECKER Smart Portable Air Conditioner offers 12,000 BTUs of cooling power, suitable for rooms up to about 550 square feet, making it a good choice for medium-sized bedrooms or living spaces. It’s a portable unit, so you can move it around as needed without permanent installation, and it comes with a window kit for easy venting. One helpful feature is the “Follow Me” remote, which acts like a mini thermostat to keep the temperature just right where you are in the room. It also supports smart controls via an app and voice commands through Alexa or Google Assistant, which is convenient if you like smart home gadgets.