10 Best Window Air Conditioning Units 2025 in the United States

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.

The Midea MAW12HV1CWT EasyCool Smart Inverter Air Conditioner Window Unit is a versatile option for those looking for both cooling and heating solutions in one device. With a cooling capacity of 12,000 BTUs, it is well-suited for larger rooms up to 550 square feet. The unit also features a supplemental heating option; however, it's important to note that the heat pump function is not effective when the outside temperature drops below 41°F. This makes it a multi-season solution, though it may not cover all year-round needs in colder climates.

The energy efficiency of this model is commendable, with a SEER of 13.3 and an Energy Star certification, promising up to 35% energy savings compared to the Energy Conservation Standard. This can translate into noticeable savings on electricity bills over time. Noise levels are impressively low, operating at around 45 dBA, which is less intrusive and conducive for quiet environments like bedrooms or offices. Installation is designed to be straightforward for double-hung windows with specific measurements, and an installation kit is included for convenience. The air conditioner's dimensions are relatively compact, making it a good fit for a variety of window sizes.

Additional features enhance usability, including a user-friendly LED display, multiple modes and speed settings, a 24-hour timer, and eco mode. The unit also supports smart home integration, allowing control via the SmartHome App, Alexa, or Google Assistant. One potential drawback is the weight of the unit, at 58 pounds, which might require assistance during installation. Furthermore, while the noise level is low, some users might find the 58 dB rating at maximum operation slightly noticeable. The Midea MAW12HV1CWT is a highly efficient, quiet, and smart-capable window AC unit, best suited for those needing a powerful cooling solution with the added benefit of supplemental heating for moderately cold conditions.

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.