10 Best Smallest Portable Ac Units 2025 in the United States

The BLACK+DECKER Portable Air Conditioner, with 10,000 BTU ASHRAE (6,300 BTU DOE), is a versatile unit suitable for cooling rooms up to 450 square feet. Its size (15.3” x 14” x 24.8”) and portability, aided by casters and side handles, make it easy to move around.

The unit operates quietly at 52 dB, which is relatively low compared to other models, making it a good choice for bedrooms or workspaces where noise might be a concern. The air conditioner also doubles as a dehumidifier and fan, providing additional utility. Energy efficiency is average with a SEER of 6.7, which may result in higher energy consumption compared to more efficient models.

The Follow Me Remote feature allows precise temperature control by using the remote as a thermostat. An easy-to-install window kit is included for convenient setup. However, the capacity of 0.45 liters for dehumidification might be low for very humid environments. This unit is ideal for someone looking for a moderately powerful, quiet, and portable AC unit with added dehumidifier and fan functions.

The SereneLife Small Portable Air Conditioner offers a cooling capacity of 12,000 BTU, which is suitable for rooms up to 550 sq ft. This makes it quite powerful for its size and ideal for medium to large spaces. Its compact dimensions (13.4 x 17.4 x 32.1 inches) and weight (70.3 pounds) ensure it remains portable despite the higher cooling power, aided by the rolling wheels.

It is equipped with a built-in dehumidifier, which can remove up to 1.8 liters of moisture per hour, adding value by reducing humidity levels in the room, thus saving space and cost compared to separate units. The unit also features four operating modes: cooling, heating, dehumidifier, and fan, making it versatile for year-round use. The included remote control facilitates ease of use, allowing adjustments to power, temperature, and other settings conveniently.

The noise levels are moderate, ranging from 56 to 59 dBa, which might be noticeable but not overly disruptive. Energy efficiency is decent with a SEER of 15, although not the highest. The ventilation and exhaust are managed through the provided window mount kit, making installation straightforward. This unit is best suited for users needing a powerful, multi-functional portable AC with heating capabilities for medium to large rooms, offering a good balance of cooling, heating, and dehumidifying features in a portable form factor.

The BLACK+DECKER Smart Portable Air Conditioner is a versatile option for cooling rooms up to 700 sq. ft. with its 14,000 BTU ASHRAE 128 (10,000 BTU DOE) cooling power. One of its key strengths is its portability, with dimensions of 16.5” x 14.06” x 27.09”, making it relatively easy to move between rooms.

It also features a 'Follow Me' remote, allowing for precise temperature control, and it’s equipped with Wi-Fi connectivity for smart control via mobile app or voice commands with Amazon Alexa or Google Assistant. This unit doubles as a dehumidifier and fan, offering useful versatility. It comes with an easy-to-install window kit, which simplifies setup.

On the downside, the unit has a Seasonal Energy Efficiency Ratio (SEER) of 6.2, which is relatively low, meaning it could be more energy-efficient. The noise level at 54 dB is moderate, so it might be noticeable in quieter settings. Weighing in at 62.4 pounds, it’s on the heavier side for portable units, which might make it less convenient to move frequently. Despite these drawbacks, its additional smart features make it a competitive choice for those looking to cool larger spaces efficiently.