10 Best Quiet Air Conditioners 2025 in the United States

The BLACK+DECKER Smart Portable Air Conditioner with Heat offers a versatile solution for year-round climate control in rooms up to 700 sq. ft. It features 14,000 BTU ASHRAE 128 (10,000 BTU DOE) cooling capacity and 12,000 BTU heating, making it suitable for both hot summer months and cold winter conditions. The unit is relatively quiet, operating at 54 dB, which is a key strength for those seeking a quieter air conditioner for their bedrooms or living spaces.

Its energy efficiency ratio (EER) is modest at 6.2, indicating it might not be the most energy-efficient option available, potentially resulting in higher electricity bills. It compensates with smart features including Wi-Fi connectivity, voice control via Amazon Alexa or Google Assistant, and a mobile app for convenient operation. The 'Follow Me' remote control enhances temperature precision by acting as a thermostat.

Additional features include a programmable timer, multiple fan speeds, and dehumidifier function, providing comprehensive climate control. The unit comes with a complete installation kit, making the setup process straightforward. Weighing 35 pounds and being portable, it’s easy to move between rooms. This air conditioner is ideal for users looking for versatility and smart control, though those prioritizing high energy efficiency might need to consider other options.

The Daikin 18,000 BTU Entra R32 Series mini split heat pump stands out for its excellent energy efficiency and strong cooling and heating capacity, making it a great choice for spaces up to 1,000 square feet. With a high SEER2 rating of 18 and an EER of 10.5, it promises lower energy bills compared to many standard units. Noise-wise, it operates quietly at 37 dB, which is comfortable for bedrooms, living rooms, or offices where you want minimal distraction.

It offers multiple fan modes including Dry, Fan, Auto, and Powerful Operation, plus features like ECO+ for extra energy savings and a sleep mode for nighttime comfort. A programmable timer and remote control add convenience, allowing you to set schedules and adjust settings easily. Installation is also simplified with the included Maxwell kit and mounting bracket.

While 37 dB is quiet, there are quieter models available if absolute silence is a priority. Also, the system's 230V requirement means it might need specific electrical setup. This Daikin mini split is well suited for homeowners or renovators looking for an efficient, quiet, and versatile air conditioner with heating capability, particularly in homes where ductwork isn’t practical.

The LG LW1424RD is a window air conditioner designed to cool medium-sized rooms up to about 800 square feet. It offers a substantial cooling power of 14,000 BTU, which is effective for spaces like living rooms or large bedrooms. One appealing feature is its relatively quiet operation at 56 decibels, which means it won’t be too disruptive during use, although it’s not the quietest model available. It has three cooling and fan speeds, allowing you to adjust airflow to your liking, and an auto cool setting helps maintain comfortable temperatures automatically.

Energy efficiency is decent with a Seasonal Energy Efficiency Ratio (SEER) of 11.2, but it does not have an official Energy Star rating, so it might not be the most cost-saving option in the long run. On the plus side, it includes a programmable 24-hour timer, which lets you schedule when the unit turns on or off, helping with energy management. The remote control and electronic controls make it easy to operate from across the room, adding to convenience.

Additional practical touches include an auto restart feature that powers the unit back on after a power outage and a washable filter with an alert to remind you when cleaning is needed. The unit is fairly large and weighs 82 pounds, so installation may require some effort or assistance. This LG model fits well for those needing reliable cooling for medium rooms with user-friendly features and reasonable noise levels. If you prioritize the quietest possible operation or maximum energy savings, it may be worthwhile to compare with other options in this category.