10 Best Window Air Conditioners 2025 in the United States

The LG 18,000 BTU Heat and Cool Window Air Conditioner is designed for medium to large rooms up to 1,000 square feet. Its 18,000 BTU cooling capacity makes it strong enough to efficiently cool most living rooms or open spaces. The unit also offers heating, which is a bonus for year-round use, helping you stay comfortable in both hot and cooler months. Energy efficiency is decent with a SEER rating of 11.1, so it won't be the cheapest to run but balances performance and power use reasonably well.

Noise level stands at 57 dB, which is noticeable but typical for a unit this size—quiet enough for most rooms without being distracting. The size is fairly large, so make sure your window can support its dimensions and weight (over 120 pounds). Installation comes with a window kit, but because of the size and weight, you might want some help setting it up. One of the standout features is the smart control via LG ThinQ app, Amazon Alexa, and Google Assistant, letting you adjust settings from anywhere or with voice commands, adding convenience and modern control options.

Other useful features include a filter light reminder, a 24-hour timer, multiple fan and temperature settings, and auto-restart after power outages, which helps maintain comfort without manual intervention. The unit has only a 1-year warranty, so consider this if you're looking for long-term assurance. This unit represents a solid choice if you need strong cooling and heating power with smart controls for a medium to large room, though it might be bulkier and a bit louder than smaller models.

The Amazon Basics Window Air Conditioner offers a cooling capacity of 5000 BTUs, making it suitable for small rooms up to 150 square feet. With an Energy Efficiency Ratio (EER) that ensures it is relatively energy-saving, this unit is an economical choice for users looking to cool compact spaces. One of its strengths is the built-in filter that is removable and washable, aiding easy maintenance and ensuring clean air circulation.

The unit includes 7 temperature settings and dual cooling and fan settings, providing flexibility in controlling the room's climate according to personal preferences. Additionally, the air direction is adjustable to target specific areas for cooling. The noise level of the unit is appropriate for its size, not overly disruptive, which is a plus for users who prioritize quiet operation.

The design fits standard windows with adjustable side panels, simplifying installation and making it versatile for different window sizes. However, its mechanical control method might be considered less convenient compared to digital controls found in higher-end models. Also, while it offers basic cooling, dehumidifying, and fan features, it lacks advanced options like smart connectivity or remote operation. This product is ideal for those needing straightforward, efficient cooling in a small space without the need for extensive features.

The Midea MAW12V1QWT is a 12,000 BTU window air conditioner designed to cool rooms up to about 550 square feet, making it a good choice for medium-sized living spaces or offices. It features an innovative U-shaped design that allows the window to stay partly open for fresh air and a better view, while the unit effectively blocks outside noise. This model operates very quietly at just 32 decibels, much quieter than many traditional window units, supporting a peaceful environment.

Energy efficiency is a strong point with DC inverter technology and a high SEER rating of 15, enabling about 35% less energy consumption than standard units. It also holds an ENERGY STAR certification, which can help save money on electricity bills over time. Installation is fairly straightforward with the included quick-snap bracket, compatible with typical window sizes between 22 and 36 inches wide. Additional features include Wi-Fi control through the SmartHome app and compatibility with voice assistants like Alexa and Google Assistant for convenient smart home integration, along with a built-in dehumidifier and dust filter to enhance air quality and comfort.

The unit weighs nearly 59 pounds, which might be challenging for one person to install alone. While 12,000 BTUs provide solid cooling power and energy savings, this capacity may not suffice for larger rooms or spaces with poor insulation. The Midea MAW12V1QWT is a strong option for those seeking a quiet, energy-efficient window air conditioner with smart controls and an innovative design fitting most standard windows.