10 Best Stand Alone Air Conditioning Units 2025 in the United States

The BLACK+DECKER Smart Portable Air Conditioner with Heat offers versatility with its 12,000 BTU (ASHRAE) cooling capacity and 9,000 BTU heating capacity, making it suitable for rooms up to 550 sq. ft. The unit's energy efficiency ratio (SEER) is relatively low at 5.8, meaning it might not be the most energy-efficient option available. However, it compensates with several convenient features, like Wi-Fi connectivity, voice control compatibility with Amazon Alexa and Google Assistant, and a 'Follow Me' remote that ensures more precise temperature control by acting as a thermostat.

The noise level of 52 dB is moderate, suitable for most living spaces without causing significant disturbance. The portability is a strong point here, with the unit designed as a standalone on wheels, allowing for easy movement between rooms. Additionally, the dehumidification function and programmable timer and thermostat provide added flexibility and comfort. The air filter ensures cleaner air circulation within the room.

On the downside, the unit is relatively heavy at 57.6 pounds, which may make it a bit cumbersome for some users to relocate frequently. Also, it is not Energy Star certified, indicating it may not be the best in energy savings. Despite these drawbacks, this BLACK+DECKER model remains a versatile choice due to its multi-functionality.

The BLACK+DECKER Portable Air Conditioner is a versatile unit designed for rooms up to 450 square feet. With a cooling capacity of 10,000 BTU (ASHRAE) or 6,300 BTU (DOE), it’s effective for medium-sized spaces. One of its standout features is the 'Follow Me' remote control, which acts as a thermostat, ensuring precise temperature control wherever you are in the room.

The unit is also a 3-in-1 device, functioning as an air conditioner, dehumidifier, and fan, which adds to its versatility. It's easy to move around thanks to the casters and side handles, making it a good choice for those who might need to relocate it between rooms frequently. The installation kit for the window is user-friendly, making setup straightforward.

The noise level is at 52 dB, which might be noticeable in quieter rooms, especially during the night. The energy efficiency ratio (EER) is not the highest at 6.7, so it may not be the best option if energy savings are a top priority. This portable AC unit is well-suited for those looking for a balance between cooling capability and portability, along with the added benefits of remote control and multi-functionality, but be mindful of the energy consumption and noise levels.

The Dreo Portable Air Conditioner stands out with a substantial 12,000 BTU cooling capacity, which is suitable for cooling a space of up to 300 square feet, making it a good option for bedrooms and small living areas. The unit incorporates features like smart controls and sleep modes that can potentially aid in energy-saving. One of its notable strengths is the noise level, which is impressively low at 46 dB, providing a quieter environment compared to many other units. This makes it ideal for use in places where minimal noise is preferred, such as bedrooms and offices.

The unit’s portability is enhanced by handles and castors, making it easy to move around the house as needed. Additionally, it includes a dehumidification function which can be particularly useful in humid climates, along with a programmable timer and thermostat for personalized comfort settings. The air filter feature ensures cleaner air circulation. An interesting highlight is the drainage-free cooling mode when humidity is under 85%, which reduces maintenance hassle.

Smart features include compatibility with voice assistants like Amazon Alexa and Google Home and a dedicated app for remote control, adding convenience to its operation. The universal window kit simplifies installation across various window types and sizes. If you're looking for a quiet, smart, and portable air conditioner with a strong cooling capacity and dehumidification, the Dreo Portable Air Conditioner could be a worthwhile consideration.