10 Best Ultra Quiet Air Conditioners 2025 in the United States

The Midea 12,000 BTU U Shaped Smart Inverter Window Air Conditioner is designed to cool spaces up to 550 sq. ft. and stands out for its ultra-quiet operation and energy efficiency. One of its key strengths is the U-shaped design, which helps block external noise, resulting in an impressively low noise level of 42 dB, making it 9 times quieter than traditional units. This design also allows the window to remain open, providing fresh air and maintaining the view, which is a unique feature among window AC units.

The advanced DC Inverter technology provides over 35% energy savings and it has received the ENERGY STAR Most Efficient Certification, highlighting its superior energy efficiency with a SEER of 15. The unit is smart-enabled and can be controlled remotely via the SmartHome app or through voice commands using Alexa or Google Assistant, adding convenience for the user. Installation is straightforward with the included quick-snap bracket, suitable for single or double-hung windows within specified dimensions. However, its weight of 58.9 pounds might make installation challenging for some users without assistance.

The unit also includes helpful features like a dust filter, fast cooling, and dehumidifying capabilities. While it excels in energy efficiency and quiet operation, its bulkiness and the requirement for a specific window size may be limiting factors for some potential buyers. The Midea 12,000 BTU U Shaped Smart Inverter Window Air Conditioner is an excellent choice for those seeking a quiet, energy-efficient, and smart-controlled air conditioning solution for moderately large spaces.

The Profile PHNT10CC GE ClearView window air conditioner is designed for those prioritizing ultra-quiet operation, boasting a remarkably low noise level of 40 dB. This makes it an excellent choice for medium rooms where peace and quiet are important, such as bedrooms in homes or small office spaces. With a cooling capacity of 10,300 BTU, it's well-suited for spaces up to 450 square feet, providing efficient cooling with its advanced inverter technology. This technology not only reduces noise but also enhances the unit's energy efficiency, evidenced by its Energy Star certification and an 11.2 SEER rating, which can help save on electricity bills.

The inclusion of a full window view design is a unique feature, allowing more natural light into the room and maintaining the ability to open or close the window easily after installation. This is coupled with a flex-depth installation capability, making it adaptable to various window depths, promising a secure fit without compromising your room's aesthetics.

Smart features like built-in Wi-Fi and compatibility with Amazon Alexa and Google Assistant add convenience, allowing control from your smartphone or voice commands, though this might be less appealing to those who prefer more traditional controls. The unit can also be operated using a remote control, providing flexibility in its operation. A potential drawback is the unit's size and weight, which may make installation a bit challenging for a single person. Nevertheless, for those seeking a quiet, energy-efficient window AC with smart capabilities, this GE model offers a compelling option.

The LG 10000 BTU Smart Wi-Fi Enabled Window Air Conditioner is designed for those who value quiet operation, with a noise level as low as 53 dB. This makes it a strong choice for bedrooms or offices where minimal noise is crucial. It effectively cools rooms up to 450 square feet and offers multiple fan speeds, allowing you to customize the airflow to your liking. The unit also features LG ThinQ technology, which enables remote control via a smartphone app or voice commands through Alexa and Google Assistant, adding convenience to its list of benefits.

The auto-restart function ensures that the unit will resume operation after a power outage, which is a useful feature for maintaining consistent comfort. Additionally, it comes with a washable filter, making maintenance relatively easy. The air conditioner uses eco-friendly R32 refrigerant, which is a plus for environmentally conscious users. However, it does not have an Energy Star rating, which might be a drawback for those particularly focused on energy efficiency.

At 57 pounds, it may also be a bit cumbersome to install without assistance. The SEER rating of 11.4 is decent but not the highest available. Priced competitively, this LG model is a practical option for those looking for a quiet, smart air conditioning solution, although those needing the utmost energy efficiency might look elsewhere.