10 Best Ductless Portable Air Conditioner 2025 in the United States

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 Portable Air Conditioner offers a cooling capacity of 10,000 BTU (ASHRAE 128), which translates to 6,300 BTU under DOE standards, making it suitable for rooms up to 450 sq. ft. This unit is versatile with its three-in-one functionality as an air conditioner, dehumidifier, and fan, catering to various needs beyond just cooling.

The Follow Me remote control is a standout feature, allowing precise temperature control by using the remote as a thermostat. Portability is another strength, thanks to the casters and side handles, which make moving the unit between rooms easy. The included window kit simplifies installation, ensuring a hassle-free setup.

The noise level of 52 dB might be noticeable, especially during the night in a bedroom setting. Its Energy Efficiency Ratio (EER) at 6.7 is relatively low, meaning it may not be the most energy-efficient option available. Maintenance involves managing a dehumidification process. This unit would be most beneficial for users looking for a multi-functional, easily movable air conditioner for medium-sized rooms, who can trade-off a bit on energy efficiency and noise levels.

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.