10 Best Air Conditioner Window 2026 in the United States

The LG 24,500 BTU Smart Window Air Conditioner is designed for large rooms up to 1560 sq. ft., making it suitable for bedrooms, living rooms, or apartments. It offers robust cooling power and features smart controls through LG ThinQ technology, compatible with Amazon Alexa and Google Assistant, allowing remote operation. The unit has a cooling capacity of 24,500 BTUs and an Energy Efficiency Ratio (EER) of 10.3, which is decent but not the highest in energy efficiency.

This air conditioner operates at a relatively low noise level of 50 dB on low settings, though it can reach up to 61 dB under some conditions, which may still be noticeable in quieter environments. It includes three cooling and fan speeds and a dehumidification function that can remove up to 1.8 pints of moisture per hour, enhancing comfort further. Additional features include a user-friendly digital control panel, a timer, a filter check reminder light, and a power failure auto restart. The installation kit and remote control are included, but note that the unit is quite heavy at 132 pounds, which may pose challenges during installation.

The lack of Energy Star certification may be disappointing for those seeking maximum energy savings. Nonetheless, the convenience of smart features and the strong cooling capacity make this air conditioner a solid choice for larger spaces. The 24-hour timer and the filter check reminder add extra ease of use.

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 MAW12HV1CWT EasyCool Smart Inverter Air Conditioner Window Unit offers a solid 12,000 BTU cooling capacity, making it suitable for large rooms up to 550 square feet. Its standout feature is multi-season comfort, providing both cooling and supplemental heating, though the heat pump is limited if the outside temperature drops below 41°F. The unit is energy efficient with a CEER of 13.3 and Energy Star certification, promising up to 35% energy savings compared to standard units.

The variable-speed inverter technology aids in quick cooling while keeping energy consumption low. It's equipped with multiple modes and speeds, plus smart controls via the SmartHome App, Alexa, and Google Assistant, adding convenience to its operation. Noise level is impressively low at 45 dBA, ensuring quiet performance, which is ideal for bedrooms or home offices. Installation requires double-hung windows with specific dimensions, and the unit comes with an installation kit, remote control, and batteries.

On the downside, the noise level can reach up to 58 dB under certain conditions, which may be noticeable in quiet environments. Additionally, the unit's weight of 58 pounds might pose a challenge during installation. If you're looking for a reliable, energy-efficient air conditioner with heating capabilities and smart features, this Midea model is a strong contender, especially for larger spaces.