10 Best Portable Ac Quietest 2025 in the United States

The Amazon Basics Portable AC is a versatile unit that offers both cooling and heating capabilities, making it suitable for year-round use. With a cooling power of 13,000 BTU ASHARE / 10,000 BTU SACC, it can effectively cool or warm rooms up to 550 square feet, which is ideal for medium-sized spaces. The unit's portability is enhanced by its rolling caster wheels and ergonomic side handles, allowing for easy repositioning around your home.

Installation is straightforward with the included venting kit, making it adaptable to various window types, including standard and crank windows. The unit features user-friendly controls with an LED display and a remote control, offering convenience with its multiple speeds, cooling settings, and automatic timer for customization to your comfort needs.

The Amazon Basics Portable AC stands out for its dual purpose functionality, ease of use, and portability, making it an excellent choice for users looking for a flexible and powerful air conditioning solution.

The Whynter ARC-14SH is a strong contender for a quiet portable air conditioner designed to cool rooms up to 500 square feet. Its 14,000 BTU rating means it can handle medium to large spaces effectively, while the noise level of 51 dB at low speed keeps it relatively quiet—suitable for bedrooms or living areas without causing much disturbance. Unlike many portable units, it includes a dual-hose system that improves efficiency and dehumidification, capable of removing up to 71 pints of moisture per day, which can help maintain comfortable humidity levels.

This model offers four modes—cooling, heating, fan with three speeds, and dehumidifying—giving you versatile climate control all year round. The thermostat is fully adjustable between 61°F and 89°F, allowing precise temperature setting. On the energy front, the unit has a Seasonal Energy Efficiency Ratio (SEER) of 7.6 but lacks an Energy Star rating, meaning it’s not the most energy-efficient option available, so your electricity bill might be a bit higher with extended use.

In terms of portability, the unit is fairly large and weighs about 85 pounds, which may make moving it around a bit challenging. However, it comes with window installation accessories and a storage bag, making setup and seasonal storage easier. It also features an activated carbon filter and washable pre-filter that help keep the air clean, but these require regular maintenance to stay effective. While 51 dB is relatively quiet for an AC of this power, it might still be noticeable in very quiet rooms at night. Additionally, it runs on standard 115V power and uses about 1300 watts, so it needs a dedicated outlet and potentially increases energy costs. For those seeking a robust portable AC that balances cooling, heating, and dehumidifying with moderate noise and solid performance for medium-large spaces, the Whynter ARC-14SH is a reliable choice, provided you consider its size, power requirements, and maintenance needs.

The Midea Duo 14,000 BTU portable air conditioner stands out with several impressive features. Its noise level is notably low at 42 dB, making it one of the quieter options available, which is ideal for maintaining a peaceful environment. The innovative hose-in-hose design helps with efficient air circulation, preventing hot air from entering the room and enhancing cooling performance.

This model also boasts inverter technology, which is more energy-efficient, saving up to 40% more energy compared to traditional units. With a high cooling power of 14,000 BTU, it is suitable for rooms up to 550 sq. ft., ensuring quick and effective cooling. Additionally, the unit is versatile with both cooling and heating functions, increasing its usability throughout the year.

It features smart connectivity, allowing control via a smartphone app or voice commands through Alexa and Google Assistant, adding convenience for tech-savvy users. On the downside, the unit's size may be a bit bulky (16.73