10 Best Air Conditioner Window 2026 in the United States

The Amazon Basics 5000-BTU Window Air Conditioner is designed for small rooms up to 150 square feet, making it a good choice for bedrooms, home offices, or compact living areas. Its 5000 BTU cooling capacity is sufficient for these spaces, offering cool air without overloading your electricity use. With an Energy Efficiency Ratio (EER) reflected by its SEER of 14, it provides decent efficiency to help keep energy costs reasonable. Noise level at 56 dB is relatively quiet for an air conditioner, so it won't disturb sleep or work much, though it’s not the absolute quietest model available. Installation is straightforward for anyone with basic DIY skills—it fits standard windows (23 to 36 inches wide) and comes with an adjustable kit, but you’ll need a screwdriver on hand. The unit is compact and lightweight enough to handle without too much trouble.

Additional features include a washable filter that traps dust and allergens, helping improve air quality, plus customizable comfort settings like 7 temperature options, 2 fan speeds, and direction control to tailor airflow. It also offers a fan-only mode and a dehumidifying function, adding versatility beyond just cooling. However, this AC is best suited for small spaces and might struggle to cool larger rooms effectively. Also, mechanical controls might feel less modern compared to digital interfaces.

This model is a practical, affordable option if you want a simple, effective air conditioner for a small room without advanced smart features.

The Midea MAW08HV1CWT EasyCool Smart Inverter Air Conditioner Window Unit with Heat offers a versatile solution for multi-season comfort. With a cooling capacity of 8,000 BTUs, it is ideal for rooms up to 350 square feet, providing efficient cooling in the summer and supplemental heating when the outside temperature is above 41°F. This unit stands out with its energy efficiency thanks to its variable-speed inverter technology, boasting an impressive SEER of 14.5 and potential energy savings of up to 35%. Additionally, it operates quietly at just 45 dB, making it suitable for bedrooms or home offices where low noise is essential.

Installation is straightforward, fitting double-hung windows with specific dimensions, and an installation kit is included to assist users. The smart technology integration, including WiFi capability and compatibility with Alexa and Google Assistant, adds convenience, allowing remote control via an app or voice commands. The unit also features an LED display, multiple modes and speeds, a 24-hour timer, and an ECO energy saver mode.

Despite its strengths, the unit has some limitations. The heating function only works effectively when the outside temperature is above 41°F, potentially limiting its usefulness in colder climates. Additionally, while the unit is relatively heavy at 56 pounds, it may require additional support during installation. The Midea MAW08HV1CWT is a well-rounded air conditioner window unit with heat, offering strong energy efficiency, low noise levels, and modern smart features, making it a good choice for users seeking comfort and convenience throughout the year.

The LG 12,000 BTU window air conditioner is designed to cool medium-sized rooms up to about 550 square feet, making it suitable for bedrooms, living rooms, or small apartments. Its cooling power is solid for this space size, offering three fan speeds and an auto cool mode, so you can adjust airflow to your comfort level easily. One standout feature is its quiet operation, with noise levels as low as 52-53 decibels, which is gentle enough not to disturb sleep or work.

Installation is straightforward, with a window kit and a slide-out washable filter included, and it comes with a remote for convenient control. The 24-hour timer helps save energy by allowing you to set when the unit turns on or off. Its energy efficiency rating (SEER 13) is average compared to newer, more efficient models, so electricity costs may be moderate. The unit does not have a high Energy Star rating, which is something to consider if you prioritize energy savings.

This LG model provides reliable, quiet cooling with easy controls and decent energy features, making it a good fit for medium rooms where noise and simple operation are important. However, it might not be the best choice for larger rooms or spaces with poor insulation.