10 Best Air Conditioner Window 2025 in the United States

The Frigidaire 5,000 BTU Window Air Conditioner is a solid choice for cooling small rooms up to 150 square feet, like bedrooms or offices. It offers a quiet operation at 52 decibels, which is gentle enough not to disturb sleep or work. Its size and included window kit make installation manageable for most standard windows.

With three fan speeds and six-way directional airflow, you can customize the cooling to suit your comfort. The remote control and filter cleaning alerts add convenience, helping you maintain the unit easily. Energy-wise, it features Eco and Sleep modes to reduce power use, though it does not have an official Energy Star rating and has a Seasonal Energy Efficiency Ratio (SEER) of 11, which is average but not top-tier. The cooling capacity of 5,000 BTUs is best for small spaces and might struggle in larger or very hot rooms.

This model includes useful features like a 24-hour timer and Dry Mode to reduce humidity, while its 1-year warranty is on the shorter side compared to some competitors. It is well-suited for those seeking a quiet, easy-to-use air conditioner for a small room without needing advanced energy certification or cooling for larger spaces.

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.