10 Best Quietest Window Air Conditioner 2025 in the United States

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 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 Midea 6,000 BTU Window Air Conditioner is a solid choice for cooling smaller rooms up to 250 square feet, such as bedrooms or offices. Its noise level at 52 decibels on low mode makes it a relatively quiet option, which is important if you want a peaceful environment. The 3-in-1 functionality means it can cool, fan, or reduce humidity, giving you some flexibility depending on the conditions. You get three fan speeds to choose from, allowing you to adjust airflow to your comfort.

Installation is straightforward if your window frame fits the size range (23"-36" wide and 14" high), with all mounting accessories included—though you’ll need a screwdriver and possibly to drill pilot holes for a secure fit. The unit features an easy-to-use remote control and a reusable air filter that helps keep dust and pet hair out of your air. While the energy efficiency ratio (SEER 12.1) is decent, this model does not have the Energy Star rating, so it might not be the most energy-saving choice available. However, eco mode and a timer help you save on electricity bills.

This Midea window AC is well suited for those looking for quiet, multi-function cooling in a compact unit without complex installation. The one-year limited warranty is fairly standard but not particularly long.