10 Best Air Conditioner Window 2025 in the United States

The GE 5000 BTU Electronic Window Air Conditioner is a solid choice for cooling smaller rooms up to 150 square feet, such as bedrooms, guest rooms, or small home offices. Its 5000 BTU cooling capacity is designed specifically for these compact spaces, delivering efficient performance without being overpowering. The unit operates at about 52 decibels, which is relatively quiet and suitable for nighttime use without causing much disturbance. Installation is straightforward thanks to the included EZ Mount kit, and it fits well into standard double-hung windows, making setup accessible even for first-time users. The sliding filter simplifies cleaning, helping to maintain good air quality and unit efficiency with minimal effort.

On the energy side, this AC has a Seasonal Energy Efficiency Ratio (SEER) of 2.6, which is on the lower end and means it may consume more electricity compared to more energy-efficient models. It also does not have an Energy Star rating, so if saving on power bills is a top priority, other options might be better. The unit includes multiple cooling modes and fan speeds, giving you control over comfort levels. However, its size and power make it unsuitable for larger rooms or open areas.

While it lacks some advanced features found in higher-end models, it offers reliable basic cooling and dehumidifying functions at an affordable price point. If you need an easy-to-install, quiet, and effective air conditioner for a small space, this GE model should serve you well.

The Frigidaire 10,000 BTU window air conditioner is designed to cool rooms up to 450 square feet, making it a solid choice for medium-sized living areas. With a cooling power of 10,000 BTUs, it provides effective temperature control, and the unit offers customizable comfort through six-way directional airflow and three fan speeds. Energy efficiency is decent with an Energy Efficiency Ratio (EER) of 10.9, and features like Eco Mode and Sleep Mode help reduce power use while maintaining comfort. Although it is not Energy Star certified, these modes contribute to energy savings.

The noise level is quite low at about 53-54 decibels, which is roughly the sound of a quiet conversation, so it won't be disruptive in living spaces. Installation is straightforward with the included window kit, and the unit's dimensions are compact enough for most standard windows. Additional conveniences include a remote control, a washable dust filter with a filter-clean alert, a 24-hour timer, and a Dry Mode that helps reduce humidity.

One downside is the relatively short one-year manufacturer warranty, which might be a consideration if you want longer coverage. Also, it’s not the highest-ranking unit in energy efficiency, so electricity costs may be a bit higher over time compared to top-tier models. This Frigidaire model is a reliable and quiet window AC suitable for users seeking good cooling performance with useful features in a mid-sized room, though those highly focused on maximum energy savings might want to explore more efficient options.