10 Best Quiet Portable Ac Units

The BLACK+DECKER 14,000 BTU portable air conditioner is designed for rooms up to 700 square feet, making it a solid choice for medium-sized spaces. It offers a 4-in-1 function: air conditioning, heating, dehumidifying, and fan mode, which adds versatility for year-round use. The unit includes a remote control and an easy-to-read LED display, plus a slide-out washable filter and a 24-hour timer, enhancing convenience. It runs on 1450 watts with a SEER of 7.2, indicating moderate energy efficiency typical for this category.

Portability is well addressed with caster wheels and side handles, allowing users to move it easily between rooms. The included installation kit makes setup straightforward, featuring a window kit and exhaust hose for venting hot air outside. The air exhaust setup is standard for portable ACs but requires space near a window. At about 60 pounds, it’s manageable but may be heavy for some to lift without wheels.

This BLACK+DECKER unit is a versatile, practical choice for someone needing an all-in-one portable air conditioner and heater for medium rooms. It balances cooling power and portability well but may produce typical operational noise and uses average energy. It suits users who value multi-functionality and easy movement over ultra-quiet operation or top-tier energy savings.

The SereneLife 12,000 BTU Portable Air Conditioner is a versatile 4-in-1 unit offering cooling, heating, dehumidification, and fan functions, making it useful throughout the year. It has a reasonable noise level around 56 dB, which is moderate—not the quietest on the market, but still manageable for most rooms without causing major disturbance. Its cooling capacity of 12,000 BTU is suitable for medium-sized rooms, efficiently handling spaces up to about 3600 cubic feet.

Portability is decent, with compact dimensions and a manageable weight, though it’s not the lightest model, so moving it around might require some effort. The unit shines with its self-evaporation system that eliminates the need for a water bucket in most cases, simplifying maintenance especially in humid environments. Energy efficiency is solid with a SEER rating of 15, which balances power use and cooling well without driving up electricity bills unnecessarily.

Controls are user-friendly thanks to the digital LED display and remote control, allowing easy operation of all modes, timers, and fan speeds. The included window mount kit facilitates proper venting, essential for portable ACs, but setup might require some time and space. The noise level may be noticeable on higher settings, potentially affecting very quiet environments like bedrooms. While it offers heating, it might not replace a dedicated heater in very cold climates. This unit is a practical choice if you want a multi-function device that cools, heats, and manages humidity with convenient controls and decent energy use, especially for medium-sized rooms.

The DeLonghi Portable Air Conditioner PAC EX390LVYN is designed to cool large rooms up to 700 square feet with a strong 14,000 BTU capacity, making it suitable for spacious living areas. It operates quietly at about 53 decibels, thanks to Arctic Whisper Extreme Technology, so it won’t be disruptive in a bedroom or office. This model stands out by combining three functions in one unit: air conditioning, dehumidifying, and fan, giving you versatile comfort options. It also features an energy-saving mode that can reduce power use by up to 30%, helping to lower electricity bills. The unit’s ECO Real Feel technology smartly balances temperature and humidity for a more comfortable atmosphere.

Portability-wise, it has cast handles and wheels, making it fairly easy to move from room to room despite its weight of nearly 38 kg. Setup is straightforward with the included window venting kit. Controls include a remote and programmable timer, plus motorized air direction to customize airflow. A washable filter helps maintain cleaner air and is simple to maintain.

On the downside, while the noise level is low for its type, the unit is not the smallest or lightest, which might be less convenient if you need to relocate it frequently. The seasonal energy efficiency ratio (SEER) is modest at 7.6, so it’s efficient but not the top in its class. Also, there’s no official energy star or BEE star rating. This DeLonghi model suits users seeking a powerful yet quiet portable AC with helpful extra functions, ideal for large rooms where balanced cooling and humidity control matter.