10 Best Quiet Ac Window Units 2026 in the United States

The Midea MAW08V1QWT is designed with quiet operation in mind, producing just 32 decibels of noise, which is much quieter than many traditional window AC units. Its unique U-shaped design not only helps reduce noise by using your window as a sound barrier but also allows you to open your window for fresh air without removing the unit. This is a great feature if you value ventilation along with cooling.

With 8,000 BTU cooling power, it efficiently cools rooms up to about 350 square feet, making it suitable for medium-sized bedrooms or living spaces. The advanced inverter technology boosts energy efficiency, saving over 35% on power compared to standard models, and it has earned an ENERGY STAR certification, which means lower electricity bills. Installation is straightforward with the included bracket, fitting most single- or double-hung windows between 22 and 36 inches wide.

The unit also supports smart features like Wi-Fi control and voice commands through Alexa or Google Assistant, which adds convenience if you like managing devices from your phone or smart home system. Additional perks include a built-in dehumidifier and dust filter to improve air quality. However, the unit weighs about 56 pounds, so it might require help during installation. Quieter and more energy-efficient than many competitors, this model is ideal for medium-sized rooms but may not be powerful enough for larger spaces. If you want a quiet, energy-saving window AC with some smart features and an easy installation, this Midea model is a solid choice.

The LG 14000 BTU Window Air Conditioner is designed to cool large rooms up to 800 square feet, making it a solid choice for bigger spaces. It operates at around 53 decibels, which is relatively quiet for its size, so it won’t be too distracting in most home or office settings. Its cooling power is strong enough for one large room, and it uses an energy-efficient SEER rating of 11.2, helping keep electricity costs reasonable.

Installation is user-friendly with a slide-in/out chassis and a complete window kit, fitting double hung windows between 27 to 39 inches wide and 16 inches high. This makes it manageable for most standard windows without professional help. The unit also offers modern conveniences like WiFi control via the LG ThinQ app, plus voice command compatibility with Google Assistant and Amazon Alexa — useful if you want to adjust settings without getting up. Maintenance is straightforward thanks to a washable dust filter which helps improve air quality and maintain efficiency. The added dehumidifier feature can enhance comfort in humid environments.

Weighing 82 pounds, it’s a bit heavy and might require two people to install safely. While 53 decibels is quiet for this type of AC, it’s not the absolute quietest model available if you prioritize near-silent operation. The 1-year limited warranty is standard but might feel short for some buyers. This LG unit balances strong cooling, decent quietness, and handy smart features, making it a great fit for those needing to cool larger rooms with easy installation and modern control options.

The Keystone Energy Star 12,000 BTU window air conditioner is designed for medium to large rooms up to 550 square feet, providing solid cooling power alongside a supplemental heating option for milder cold days. Its inverter technology helps the unit adjust power use efficiently, which not only saves energy but also reduces noise—running about 58 decibels, making it quieter than many standard window ACs. This makes it a good choice if you want a quieter environment, like in apartments. The unit is fairly energy efficient, with a SEER rating of 13.3, and claims to be 18% more efficient than average window models, helping keep electricity bills in check. It also includes a washable filter with a reminder light for easy maintenance, plus a remote control for convenience. Installation fits a typical window size range, but make sure your window is between 24 and 38.5 inches wide and about 14.5 inches tall.

While the supplemental heating is a helpful feature, it’s not strong enough to replace a main heating system and works best when outside temperatures are between 41 and 75 degrees. Also, the noise level, though quieter than many, might still be noticeable if you are very sensitive to sound. Its 1-year limited warranty is fairly standard but somewhat short compared to some competitors. If you want a reliable, energy-conscious window AC with quiet operation and a bit of extra heating for mild cold, this Keystone unit provides a balanced mix of features and comfort.