10 Best Quiet Air Conditioning Window Units 2025 in the United States

The LG 18,000 BTU Window Air Conditioner is designed to effectively cool large rooms up to 1,000 square feet. One of its standout features is the quiet operation, with a noise level of 61 dB, which is relatively quiet for a unit of this size and capacity. It offers a strong cooling capacity of 18,000 BTUs, making it suitable for substantial spaces like living rooms or large bedrooms. The unit is equipped with multiple fan speeds and an auto cool function, allowing for customized cooling and airflow. The addition of a remote control enhances user convenience, enabling you to control the air conditioner from a distance. The auto restart function is particularly useful during power outages as it automatically restores the previous settings when power returns, ensuring continuous comfort without manual intervention.

Its energy efficiency ratio (EER) is 10.3, which is decent but not the highest in its class, meaning it could be more energy-efficient. However, it includes a filter light reminder for easy maintenance, alerting you when the filter needs cleaning. The size and installation are typical for a unit of this capacity, with dimensions of 28.13 x 26 x 17.7 inches and a weight of 130 pounds, which might require two people for installation. The unit also features a 4-way air deflection system and a dehumidifier function, adding to its versatility.

On the downside, it is not Energy Star certified, which might be a consideration for those seeking the highest energy efficiency standards. Additionally, some users might find the size and weight cumbersome during installation. Despite these minor drawbacks, the LG 18,000 BTU Window Air Conditioner remains a solid choice for those needing a powerful and relatively quiet cooling solution for larger spaces.

This GE window air conditioner is designed to cool small rooms up to 150 square feet, making it a solid choice for bedrooms, small living spaces, or home offices. With a cooling power of 5,100 BTUs, it efficiently provides sufficient cooling for these compact areas. Its noise level is rated at 56 decibels, which is relatively quiet and suitable for nighttime use without causing much disturbance. The unit offers 2 cooling modes and 2 fan speeds, along with 10 temperature settings, giving users simple control over cooling comfort.

Installation is fairly straightforward with the included EZ Mount kit, but it requires a double-hung window fitting within specific size limits (about 22 to 36 inches wide and 13 inches high), so make sure your window matches these dimensions. Its energy efficiency ratio (EER) is on the lower side at 2.6, and it carries only a 1-star energy rating, meaning it may not be the best pick if you prioritize energy savings or lower electricity bills. A positive feature is the washable and removable filter, which helps keep the unit running smoothly with minimal maintenance.

The unit is compact and weighs 36 pounds, which is manageable for most users to install. It holds a 4.3-star rating from thousands of reviewers, reflecting strong customer satisfaction. Those needing a larger cooling capacity or higher energy efficiency might want to consider other models. This GE air conditioner provides a dependable, quiet, and easy-to-install option for small spaces, especially if budget and simplicity are your main concerns.

The LG 12,000 BTU window air conditioner is a solid choice for cooling medium-sized rooms up to 550 square feet, such as bedrooms or living rooms. It operates quietly, with noise levels as low as 52-53 dB on the lowest fan setting, making it suitable for sleep or work environments. The unit features three fan speeds, a digital control panel with a remote for easy adjustment, and 4-way air deflection to distribute cool air evenly throughout the room.

With a Seasonal Energy Efficiency Ratio (SEER) of 13, this model offers decent energy efficiency. It includes a washable filter, a timer for scheduling operation to save power, and a straightforward installation kit requiring no complicated assembly. The unit’s physical dimensions (about 23.6" wide and 22.2" deep) are standard for 12,000 BTU window units, making it important to check your window size compatibility. Its quiet operation and user-friendly features make it ideal for bedrooms or apartments where low noise is valued, though other models might be preferable for larger spaces or higher energy efficiency. The one-year warranty adds confidence in its reliability.