10 Best Quietest Window Air Conditioner 2025 in the United States

The Frigidaire 12,000 BTU Window Air Conditioner is a solid choice for those looking for a quiet and efficient cooling option. With a noise level of 57 dB, it is quieter than many other models, making it suitable for larger rooms up to 550 sq. ft. where noise reduction is important, such as bedrooms or home offices. It offers customizable cooling with six-way directional airflow and three fan speeds, allowing users to set their preferred comfort level easily.

The remote control and filter light reminder add convenience, and the washable dust filter helps maintain its efficiency over time. On the energy-saving front, the Eco Mode and Sleep Mode are beneficial features, although its SEER rating of 10.9 and lack of an Energy Star certification suggest there's room for improvement in energy efficiency. Installation is straightforward with the included window kit, though it may require some help due to its weight of 63.5 pounds.

The 24-hour timer and Dry Mode are additional features that enhance user convenience by allowing for scheduled operation and moisture control. Despite these strengths, the air conditioner does not come with an Energy Star rating, which may be a consideration for the energy-conscious buyer. Additionally, while it does have a customer satisfaction rating of 4.2 out of 5 stars, potential buyers should consider if the features meet their specific needs. This model would be well-suited for those prioritizing quiet operation and customizable cooling options in a non-Energy Star certified unit.

The Midea MAW08HV1CWT EasyCool Smart Inverter Air Conditioner stands out for its ultra-low noise performance, operating at just 45 dB. This makes it an ideal choice for those seeking a quiet environment, whether for sleeping, working, or relaxing. Its cooling capacity of 8,000 BTU is sufficient for rooms up to 350 square feet, making it a versatile option for bedrooms or medium-sized living spaces. Additionally, its energy efficiency is notable with a SEER rating of 14.5 and Energy Star certification, promising up to 35% energy savings compared to standard models.

This air conditioner also offers multi-season functionality with both cooling and heating capabilities, providing comfort throughout the year as long as the outside temperature exceeds 41°F for heating functions. The unit is user-friendly with an LED display, multiple modes, three-speed settings, a 24-hour timer, and ECO energy saver mode. It can be controlled via a SmartHome App, remote control, or voice commands through Alexa and Google Assistant, adding to its convenience.

Installation requirements are standard for double-hung windows, and the included installation kit makes setup straightforward. Regular maintenance is made easy with a washable filter accessible from the front panel. However, at 56 pounds, the unit is relatively heavy, which might make installation a bit challenging for some users. Additionally, while it provides excellent energy efficiency and quiet operation, the heating function has its limits based on outside temperature. This air conditioner is best suited for users who prioritize quiet operation and energy savings, combined with the convenience of smart controls and multi-season use.

The Frigidaire 5,000 BTU Window Air Conditioner is designed for small rooms up to 150 square feet and stands out for its quiet operation at 52 decibels, making it a good choice for bedrooms or offices where low noise is important. It offers customizable cooling with three fan speeds and 6-way directional airflow, allowing you to adjust comfort precisely. Energy efficiency is decent with an 11 SEER rating and features like Eco Mode and Sleep Mode help reduce electricity use.

The unit also includes easy-to-use remote control, a washable dust filter with cleaning alerts, and a 24-hour timer, which add to user convenience and simple upkeep. Installation is straightforward with a window kit included, and the compact size fits most standard windows. However, it is not Energy Star certified, so it might not be the best option if you want the highest possible energy savings. Also, its 5,000 BTU capacity limits it to smaller spaces, so larger rooms will need a more powerful model.

While the noise level is low, 52 dB is not ultra-quiet compared to some premium models that operate below 50 dB. This model provides a solid balance of quiet performance, energy features, and user-friendly controls, making it suitable for those seeking an affordable, reliable air conditioner for small spaces.