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 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.

The BLACK+DECKER 12,000 BTU Portable Air Conditioner is designed to cool rooms up to about 550 square feet, making it a solid choice for bedrooms or medium-sized living spaces. It offers a decent cooling capacity at 12,000 BTU (although the official DOE rating is 7,000 BTU), which means it can handle typical summer heat effectively. The unit operates at a noise level of 52 dB, which is relatively quiet but might still be noticeable during very quiet moments like sleep. One thing to note is its Energy Efficiency Ratio (EER) of 5.8, which is on the lower side, so it may consume more electricity compared to more efficient models, and it lacks an Energy Star rating.

Portability is a strong suit here — the unit includes casters and side handles, so moving it between rooms is fairly easy despite its 56.8-pound weight. You also get a handy remote control and a top-mounted LED display for easy temperature adjustments, along with a 24-hour timer and a 'Follow Me' feature that adjusts cooling based on the remote’s location. Maintenance is user-friendly, with a slide-out washable filter and an auto water evaporation system that reduces the need to manually empty water. The included window installation kit is straightforward, allowing quick setup without professional help.

This BLACK+DECKER model balances good cooling power with convenient portability and simple controls. It suits someone who wants a reliable, easy-to-move air conditioner for a medium room without extra complexity or premium energy savings.