10 Best Air Conditioner For Basement 2025 in the United States

The BLACK+DECKER Smart Portable Air Conditioner with Heat offers a versatile solution for cooling and heating spaces up to 700 sq. ft., making it ideal for large basements. With a cooling capacity of 14,000 BTU (10,000 BTU DOE) and heating capacity of 12,000 BTU, it is equipped to handle varying temperatures throughout the year. The unit also functions as a dehumidifier, which is essential for basement environments that often struggle with humidity control, and as a fan.

Its SEER of 6.2 and lack of Energy Star rating might indicate higher energy consumption, which can be a drawback for energy-conscious users. However, the smart features, including Wi-Fi connectivity and voice control compatibility with Amazon Alexa and Google Assistant, add convenience. The 'Follow Me' remote control feature ensures precise temperature regulation by acting as a thermostat. Installation is relatively straightforward with the included window kit, making it accessible for most users.

The noise level at 54 dB may be noticeable but is generally acceptable for basement settings. Weighing 35 pounds, its portability is a significant advantage, especially if you need to move the unit between different rooms. While it has some energy efficiency limitations, its multifunctionality, ease of use, and smart features make it a strong contender for those needing a versatile air conditioning unit for their basement.

The BLACK+DECKER Portable Air Conditioner offers a cooling capacity of 12,000 BTU (8,000 BTU SACC), which is suitable for spaces up to about 500 to 550 square feet, making it a reasonably good choice for most basements. It’s a three-in-one unit that not only cools but also acts as a dehumidifier and fan — an important feature for basements where moisture can be a problem. The unit includes a handy 'Follow Me' remote control which lets you set the temperature accurately from across the room, improving convenience. It comes with an easy-to-install window kit, so setup should be straightforward if your basement has a suitable window for venting.

The noise level is around 52 dB, which is moderate and slightly noticeable but not overly loud, allowing for reasonable comfort during use. However, it does not have an Energy Star rating and its Seasonal Energy Efficiency Ratio (SEER) is 5.8, which means it’s not the most energy-efficient option available, so expect moderate electricity usage. Being portable with caster wheels and side handles, you can easily move it if needed. The water capacity for dehumidifying is 0.8 liters with auto water evaporation to reduce manual draining.

This product provides a good balance of cooling power and humidity control for a basement, though if energy efficiency or very quiet operation is a priority, there might be better options available.

The Midea MAW06R1CWT EasyCool 6,000 BTU Window Air Conditioner is a solid choice for cooling a basement area up to 250 square feet. Its cooling capacity is adequate for such space, making it effective in maintaining a comfortable environment. The unit offers three functions: cooling, fan circulation, and dehumidification, which is particularly useful for basements that tend to be damp and humid. The dehumidifier mode will help control moisture levels, enhancing comfort and reducing the risk of mold growth.

The air conditioner operates quietly at 52 dB on low mode, which is beneficial for a basement where noise can easily travel through the house. The included reusable filter is a practical feature that helps capture dust and pet hair, improving air quality and reducing maintenance costs. Installation is straightforward with all necessary mounting accessories included, though you will need a screwdriver for the setup.

The unit also features an intuitive LED display and a remote control for easy operation from a distance, though its lack of Energy Star certification might be a downside for those particularly concerned about energy consumption. While the Seasonal Energy Efficiency Ratio (SEER) of 12.1 indicates it is fairly efficient, it may not be the most energy-saving option available. The product comes with a one-year parts and labor warranty, giving some peace of mind regarding its durability and reliability. In summary, the Midea MAW06R1CWT is an effective, user-friendly option for basement cooling, with the added benefit of humidity control and quiet operation, though it may not be the top performer in energy efficiency.