10 Best Quietest Small Window Air Conditioners 2025 in the United States

The Midea 8,000 BTU Smart Inverter Air Conditioner is a solid choice for those looking for a quiet and efficient window unit to cool rooms up to 350 square feet. Its noise level is impressively low at 45 dB, meaning it won’t be disruptive during work, relaxation, or sleep, making it one of the quieter options in the small window AC category. The cooling capacity of 8,000 BTU is suitable for medium-sized rooms like bedrooms or small living rooms. An added bonus is the built-in heating feature, which works well when temperatures are above 41°F, providing year-round comfort without needing a separate heater.

Energy efficiency is another highlight since it is Energy Star certified with a SEER rating of 14.5, helping to reduce electricity bills compared to many older or less efficient models. The inverter compressor technology also contributes to energy savings and helps maintain a steady temperature without frequent power surges. Installation fits double-hung windows between 24 and 38.5 inches wide, which covers many common window sizes, though the window sash must allow a 14.5-inch vertical opening, so checking your window dimensions first is important. The unit is reasonably sized, and the included installation kit and remote make setup and control convenient.

Additional features like WiFi connectivity with smart app control, voice assistant compatibility, multiple modes (heat, cool, dry, fan), and adjustable airflow louvers add user-friendly flexibility. The washable filter is easy to access and helps keep the unit running efficiently. The heating function does have limitations in very cold weather, and at 56 pounds, it’s somewhat heavy to install alone. The 1-year limited warranty is standard but not particularly generous. For those prioritizing quiet operation combined with good energy savings and multi-season use, this Midea unit is a worthwhile option, ideal for users seeking a reliable window air conditioner with smart features for moderate-sized rooms.

The Midea 12,000 BTU EasyCool Window Air Conditioner is a solid choice if you’re looking for a quiet and versatile cooling solution for small to medium spaces up to about 550 sq. ft. With a noise level of 55 dB, it operates quieter than a typical household refrigerator, making it suitable for bedrooms or offices where low noise is important. Its 12,000 BTU cooling capacity is strong enough for moderate-sized rooms, and it offers the added flexibility of a 3-speed fan and a dehumidifier mode, which helps maintain comfortable humidity levels.

Energy efficiency is decent with a Seasonal Energy Efficiency Ratio (SEER) of 12 and features like Eco mode and programmable timers to help reduce electricity use. The unit is relatively large (23 x 36 x 14 inches) but installs easily in standard windows (23"-36" wide), with all mounting hardware included. Keep in mind you'll need a screwdriver and possibly to drill pilot holes during installation.

The remote control and intuitive LED display make operation straightforward, and the reusable filter is a nice touch for keeping dust and pet hair at bay. It’s backed by a one-year warranty, reflecting confidence in product quality. While 55 dB is quiet compared to many air conditioners, it might still be noticeable if you’re extremely sensitive to sound. Also, the unit is somewhat bulky for smaller windows or tighter spaces, and it lacks a star energy rating which some buyers might look for. The Midea EasyCool is well suited for anyone who wants a quiet, multi-functional AC that cools efficiently and is easy to operate and install, especially in apartments or homes with medium-sized rooms.

The Midea MAW06R1CWT EasyCool 6,000 BTU Window Air Conditioner offers a quiet and versatile cooling solution for spaces up to 250 sq. ft. Its noise level is notably low at 52 dB, making it one of the quieter choices for a small window air conditioner. This unit stands out with its 3-in-1 functionality, providing cooling, air circulation, and dehumidification.

The included remote control and intuitive LED display add convenience to adjusting settings from across the room. Energy efficiency is emphasized with a SEER of 12.1 and features like Eco mode and a programmable timer to help reduce energy consumption. However, it doesn’t meet Energy Star certification standards, which could be a drawback for those focused on maximum energy savings.

Installation is straightforward with all necessary accessories included, though a screwdriver is required and potentially pilot holes for certain window frames. At 38.2 pounds, it is relatively manageable for window installation but may require some effort. The reusable filter is a bonus for maintenance, reducing costs over time. This window air conditioner is ideal for individuals seeking a quiet, efficient, and versatile cooling unit for small spaces, although those needing higher energy efficiency may want to consider other options.