10 Best Quietest Window Air Conditioner 2025 in the United States

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 Amazon Basics 5000-BTU window air conditioner is a solid choice for cooling small rooms up to 150 square feet, such as bedrooms or home offices. With a cooling capacity of 5000 BTU, it can efficiently handle these spaces without using too much energy, featuring a respectable Energy Efficiency Ratio (SEER) of 14. One of its main advantages is quiet operation, producing noise levels around 56 dB, which is fairly low for a window AC and suitable for sleeping or working.

It offers simple mechanical controls with 7 temperature settings and 2 fan speeds, allowing you to customize comfort easily. The unit also includes a washable filter that helps trap dust and allergens, making maintenance straightforward and helping keep air quality better. Installation is designed to be convenient, fitting standard windows between 23 and 36 inches wide with an adjustable window kit and mounting hardware included; however, you will need a screwdriver yourself.

The noise level isn’t the absolute quietest available—some models can be quieter if silence is your top priority. Also, it only offers two fan speeds, which might limit fine-tuning airflow for some users. Given its modest size and power, it’s best suited for small rooms rather than larger living areas. This model presents a budget-friendly, user-friendly option for anyone seeking a reliable, quiet air conditioner for smaller spaces without complicated features or high energy bills.

The Midea MAW10V1QWT U-Shaped Window Air Conditioner is designed with quiet operation as a top priority, producing noise as low as 32 decibels, which is significantly quieter than many traditional window AC units. This makes it a great choice for bedrooms, offices, or any space where noise can be distracting. It offers a solid cooling capacity of 10,000 BTU, suitable for rooms up to about 450 square feet, balancing effective cooling for most medium-sized rooms.

Thanks to its advanced DC inverter technology, it achieves over 35% energy savings compared to standard models and carries an ENERGY STAR certification, which means it’s more efficient and can help reduce electricity bills. The unit features smart Wi-Fi control, allowing you to manage temperature settings remotely via a smartphone app or voice assistants like Alexa and Google Assistant, adding convenience for modern homes. Its unique U-shaped design not only helps reduce noise by using the window as a sound barrier but also allows the window to open slightly for fresh air and natural light, a feature not commonly found in other window ACs.

Installation is straightforward with the included quick-snap bracket, fitting most single or double-hung windows between 22 and 36 inches wide. The unit weighs nearly 57 pounds, so installation may require some effort or help. This model distinguishes itself through quiet performance and energy efficiency, making it an excellent option for those prioritizing a peaceful environment and lower power use, though installation might require some care due to the unit's weight.