10 Best Window Air Conditioning Units 2026 in the United States

The Frigidaire 12,000 BTU Window Air Conditioner is designed to cool spaces up to 550 sq. ft., making it suitable for larger rooms or small apartments. It boasts customizable cooling with a 6-way directional airflow and three fan speeds, allowing users to achieve their desired comfort level. The unit operates relatively quietly at 57 dB, which is beneficial for bedrooms or living spaces where noise is a concern.

Energy efficiency is a positive aspect of this unit, with features like Eco Mode and Sleep Mode designed to optimize power consumption. However, it does not have an Energy Star certification, which might be a consideration for those prioritizing energy savings. The Seasonal Energy Efficiency Ratio (SEER) of 10.9 reflects moderate efficiency.

Installation is straightforward with a window kit included, and the unit's size at 21.4 x 18.9 x 14.6 inches should fit most standard window spaces, though at 63.5 pounds, it may require two people to install safely. The remote control and filter light reminder add convenience, and the washable dust filter ensures easy maintenance. Potential buyers should be aware that it requires a 115-volt outlet and consumes 1100 watts. Additional features like a 24-hour timer and Dry Mode to reduce humidity are practical for maintaining a comfortable indoor environment. However, for those looking for a unit with advanced smart features or a higher SEER rating, this model might not fully meet their expectations.

The Frigidaire 10,000 BTU Window Air Conditioner is designed to cool rooms up to 450 square feet, making it a good choice for medium-sized living spaces. Its cooling power is solid for this size, providing customizable comfort with 3 fan speeds and 6-way directional airflow, so you can direct cool air exactly where you want it. The unit operates quietly at around 53-54 decibels, which is low enough to avoid disturbing conversations or sleep. Energy efficiency is decent, featuring an Eco Mode and Sleep Mode to help reduce electricity use, although it does not have the Energy Star certification, which might matter if you’re looking for the most cost-effective long-term option. Installation is typical for window units, and its size (about 21 x 19 x 15 inches) should fit most standard windows with the included window kit.

Additional user-friendly features include a remote control for convenience, a filter cleaning alert to remind you when maintenance is needed, a 24-hour timer, and a Dry Mode that helps reduce humidity in the room. The unit has a one-year manufacturer warranty and has generally positive customer feedback. While it’s not the quietest model available and lacks Energy Star certification—potentially leading to higher electricity costs compared to more efficient models—it remains a reliable, easy-to-use AC unit well-suited for those needing effective cooling with handy features in an average-sized room.

The LG 18,000 BTU Window Air Conditioner is a solid choice for cooling spaces around 1,000 square feet, such as bedrooms, living rooms, or apartments. Its cooling power is strong enough to keep medium-sized rooms comfortable. One handy feature is the built-in heater, so you can use it year-round, which adds value if you need supplemental warmth during colder months. It operates on a 230/208V power supply, which is less common in typical homes and may require special installation or an electrician to set up properly.

In terms of energy efficiency, the unit has a SEER rating of 2.8, which is fairly standard but not the most efficient option available, so it might use more electricity compared to newer or higher-rated models. The noise level is about 61.7 dB, which is noticeable but typical for units this size; it may be a bit loud for very quiet spaces or light sleepers. Installation is manageable with the included kit, but the size is quite large (about 30.5 x 25.5 x 16.8 inches), so you’ll need an appropriate window space.

Additional conveniences include a remote control, digital panel, two fan speeds, 4-way air deflection for better airflow, and a 24-hour timer. The auto-restart feature is useful if you experience power outages, as it automatically powers the unit back on. Maintenance is straightforward with a washable filter and a reminder light to know when cleaning is needed. This LG window AC unit fits well for those seeking reliable cooling and heating in medium-sized rooms, with easy controls and useful extras, though the electrical requirements and moderate noise level should be considered before deciding.