10 Best Quiet Wall Air Conditioners 2025 in the United States

The LG LW1424RD is a solid choice if you need a window air conditioner for a medium to large room, cooling up to around 800 square feet. With a cooling capacity of 14,000 BTU, it is powerful enough for spaces like living rooms or large bedrooms. One of its strengths is the relatively quiet operation at 56 decibels, which means it won't create distracting noise while running. It offers three fan speeds and an auto cool feature, giving you some flexibility to adjust comfort levels easily. Energy-wise, it has a Seasonal Energy Efficiency Ratio (SEER) of 11.2, which is decent but not the most efficient available. This means it won't be the cheapest to run long-term, but it balances performance and energy use fairly well.

Installation is straightforward since it is a window unit, and it comes with helpful features like an easy-to-clean washable filter and a check filter alert, reducing maintenance hassle. The included remote control and a 24-hour timer add convenience, allowing you to program cooling times or control the unit from across the room. It also has an auto-restart feature that turns the AC back on after a power outage, which can be a practical benefit.

The noise level, while quiet for its class, might still be noticeable if you’re very sensitive to sound or need ultra-quiet operation. The unit also weighs 82 pounds, so installation might require two people. Additionally, it lacks a higher energy star rating, which could be a factor if you prioritize lower electricity bills or environmental impact. This model is well suited for users looking for a reliable, medium-large room window air conditioner with good cooling power and useful features, without requiring advanced installation or high-end energy performance.

The Frigidaire 5,000 BTU window air conditioner is a good choice for cooling small rooms up to 250 sq. ft., such as bedrooms or compact living spaces. It operates quietly at 52 decibels, which helps maintain a peaceful environment without disturbance during sleep or work. The unit offers two fan speeds and an 'Effortless Temperature Control' feature, allowing you to customize and maintain your preferred comfort level easily. Its cooling power is suitable for small areas but may not be enough for larger rooms.

Although it doesn’t have an Energy Star rating, its Seasonal Energy Efficiency Ratio (SEER) of 11 suggests moderate energy efficiency, which should keep electricity costs reasonable but not the lowest in class. Installation is straightforward thanks to adjustable side panels that fit various window sizes securely, and the long power cord reduces the hassle of extension cords. Maintenance is also simple with a washable dust filter that helps keep the air clean and the unit running smoothly. The auto-restart feature is a convenient addition that saves you from having to reset settings after a power outage.

This model lacks advanced smart features like remote control via smartphone apps or timers, which some competing models offer. For those seeking a quiet, no-fuss air conditioner that efficiently cools smaller areas without overwhelming complexity, this Frigidaire unit performs well.

The LG 6,000 BTU Window Air Conditioner is a solid choice if you want a quiet unit suitable for medium-sized rooms up to around 250 square feet, like bedrooms or small living rooms. It operates quietly at about 52 decibels on low, which means it won’t disrupt your sleep or work. The cooling capacity is modest but sufficient for rooms of this size, offering three fan speeds for better airflow control. The energy efficiency ratio (EER) of 11.5 is decent, helping keep electricity costs reasonable without being top-tier in energy savings. Installation is straightforward with the included window kit and clear instructions, and maintenance is made easier by a washable filter and filter reminder light.

Additional features like a remote control, 2-way air deflection for more flexible cooling direction, and auto-restart after a power outage add convenience. It lacks a high energy star rating, which might matter if you want the most energy-efficient option. Also, while 52 dB is quiet, it’s not the absolute quietest model available. If you need a simple, reliable unit that balances quiet operation with practical features for medium rooms, this LG model fits well, but if you want ultra-silent or ultra-efficient performance, you might look at other options.