10 Best Ductless Portable Air Conditioner 2025 in the United States

The BLACK+DECKER Smart Portable Air Conditioner with Heat is a versatile and powerful unit designed for rooms up to 700 sq. ft. It offers a good cooling capacity of 14,000 BTU (ASHRAE) and 10,000 BTU (DOE), along with a heating function of 12,000 BTU, making it suitable for use throughout the year.

The energy efficiency ratio (EER) is not specified, but the SEER of 6.2 indicates moderate energy efficiency. With a noise level of 54 dB, it operates relatively quietly, making it a good option for bedrooms and living rooms. It includes smart features like Wi-Fi connectivity and voice control through Amazon Alexa or Google Assistant, which add to its convenience.

The Follow Me remote control is a standout feature, allowing for more precise temperature control. Portability is ensured with its compact dimensions and included window installation kit, making it easy to set up and move as needed. However, it's important to note that it is not Energy Star rated, which may be a consideration for those looking for highly energy-efficient models. This unit is well-suited for those seeking a multi-functional portable air conditioner and heater with smart features and reliable performance, particularly in mid-sized to larger rooms.

The BLACK+DECKER Smart Portable Air Conditioner with Heat offers a versatile solution for year-round comfort with a cooling capacity of 12,000 BTU ASHRAE (8,000 BTU DOE) and heating capacity of 9,000 BTU. This unit can effectively cool or heat rooms up to 550 sq. ft., making it suitable for bedrooms and medium-sized spaces. Its portability is enhanced by a compact form factor and wheels, allowing for easy maneuvering between rooms. However, it weighs 57.6 pounds, which might be cumbersome for some users to move frequently.

The energy efficiency ratio (EER) is 5.8, which is not the highest, meaning it may not be the most energy-efficient option available on the market. The noise level is 52 dB, which is relatively quiet but might still be noticeable in a quiet room. The unit includes a smart control feature that allows for Wi-Fi connectivity and voice control via Amazon Alexa and Google Assistant, adding convenience for tech-savvy users. The Follow Me Remote feature ensures precise temperature control by acting as a thermostat.

Maintenance is straightforward with the dehumidifier function and easy-to-install window kit included. The unit is not Energy Star rated, which might be a consideration for those looking to save on energy costs. The lack of an Energy Star rating and moderate EER are potential drawbacks for cost-conscious consumers.

The SereneLife 14000 BTU Ultra Quiet Portable Inverter Air Conditioner is a solid choice for cooling and heating spaces up to about 650 square feet, making it suitable for bedrooms, living rooms, or offices. Its inverter technology not only cools faster—about 50% quicker than standard models—but also improves energy efficiency by around 40%, which can help save on electricity bills. The noise level is moderate at 53 decibels, which is quieter than many portable ACs but might still be noticeable in very quiet settings.

Portability is well addressed with smooth casters and a relatively compact, sleek design, allowing easy movement from room to room. Control options are modern and convenient, with remote control and smart Wi-Fi connectivity enabling adjustments from a phone or voice assistant. Maintenance is straightforward thanks to a washable, removable filter and simple installation with the included window kit. The unit weighs about 53 pounds, so it’s not the lightest if frequent moves are planned.

While it offers multiple functions—cooling, heating, dehumidifying, and fan modes—users should note the noise level is slightly higher than the 43 dBA claimed for quieter operation under specific conditions. This model balances strong cooling power, energy savings, and user-friendly features, making it a practical option for those needing a versatile and efficient portable AC for medium to large rooms.