10 Best Air Conditioners Air Conditioners 2025 in the United States

The LG 23,000 BTU Smart Window Air Conditioner is designed for medium to large rooms up to about 1,400 square feet, making it suitable for living rooms or open-plan spaces. Its strong cooling capacity means it can efficiently cool bigger areas, which is a big plus if you want quick and effective comfort. The unit includes a supplemental heating function, which is handy for cooler days, so you get year-round use instead of just summer cooling.

It supports smart control via LG ThinQ, allowing you to adjust settings remotely through your smartphone or voice assistants like Alexa and Google, adding convenience if you like modern tech features. With two fan speeds for both heating and cooling, you can customize how the air circulates to match your comfort needs. The noise level sits at 62 decibels, which is moderately loud—noticeable but not overly disruptive for most daily activities. On energy efficiency, its Seasonal Energy Efficiency Ratio (SEER) is 9.8, which is average for window units; it balances performance and efficiency fairly well. It also has a dehumidifier function, which helps reduce indoor moisture, improving comfort during humid days.

The unit is a bit on the heavier side at 141 pounds, so installation might require some help. If you are looking for a powerful, feature-rich air conditioner that also heats and offers smart connectivity, this model is a strong choice, especially for larger rooms. However, if ultra-quiet operation or top-tier energy savings are your priorities, you might want to consider other options.

The BLACK+DECKER Smart Portable Air Conditioner with Heat is a versatile unit designed for rooms up to 700 sq. ft. Its cooling capacity is notable at 14,000 BTU ASHRAE (10,000 BTU DOE), making it suitable for large spaces. Additionally, it offers 12,000 BTU heating, which is great for year-round use. The unit stands out with its four-in-one functionality: air conditioning, heating, dehumidifying, and fan modes.

The Energy Efficiency Ratio (EER) is relatively low at 6.2, suggesting that it may not be the most energy-efficient option available. This could lead to higher electricity bills over time, particularly with regular use. Noise levels are at a moderate 54 dB, which is comparable to a quiet conversation; this should be manageable for most users, but noise-sensitive individuals may want to take note. The portability of this unit is a significant advantage, allowing users to move it easily between rooms.

The smart features, including Wi-Fi connectivity and compatibility with Amazon Alexa and Google Assistant, offer convenient control options. The 'Follow Me' remote control enhances user experience by allowing precise temperature settings. An included installation kit simplifies the setup process, making it user-friendly. Weighing 35 pounds, it is reasonably easy to handle but might require some effort to move frequently. This BLACK+DECKER model is best suited for those looking for a multi-functional, portable air conditioning solution with smart features and who are less concerned about energy efficiency.

The Daikin 18,000 BTU LV Series mini-split air conditioner is a solid choice if you're looking to cool or heat a medium-sized space up to about 1,000 square feet. It offers strong cooling power at 18,000 BTUs and even better heating capacity with 21,600 BTUs, which makes it a flexible option for year-round comfort. One of its standout features is its high energy efficiency, rated at 19.5 SEER2 and 12.7 EER2, meaning it can save you money on electricity compared to less efficient models. The unit runs quietly at around 37 decibels, so it won’t disturb daily activities or sleep. As a ductless mini-split, it’s ideal for homes or rooms where installing ducts is difficult or unwanted, such as sunrooms, basements, or garages. It also comes with a useful 15-foot installation kit and remote control, simplifying setup and daily use.

Advanced features like the Intelligent Eye sensor adjust airflow based on room occupancy, and the built-in air purifying filter improves indoor air quality. On the downside, this model requires a 230V electrical setup and isn’t Energy Star certified, which might be a consideration if you want the highest eco ratings. Also, the initial cost and installation may be higher than window units, but the efficiency and comfort benefits can justify this. This Daikin unit is excellent for those wanting efficient, quiet, and versatile heating and cooling without ductwork, making it especially suitable for renovation projects or additional living spaces.