10 Best Quietest Air Conditioner 2025 in the United States

The Frigidaire FHWC063TC1 Window Air Conditioner is designed for those seeking a quiet cooling solution. With a noise level of 51 dB, it is relatively quiet compared to many other air conditioners, making it suitable for bedrooms or offices where noise can be a distraction. Its cooling capacity of 6,000 BTU is adequate for spaces up to 250 square feet, making it perfect for small to medium-sized rooms.

The unit's Seasonal Energy Efficiency Ratio (SEER) of 11 indicates moderate energy efficiency, though it is not Energy Star rated, meaning it may not be the most energy-efficient option available. The inclusion of inverter technology helps in maintaining consistent temperatures and potentially reducing energy consumption. The multi-speed fan offers three different speeds, providing flexibility in cooling options. Additional features like remote control, filter light reminder, and washable dust filter add to the convenience of using this air conditioner. It comes with a window installation kit, making setup straightforward.

On the downside, some users might find the lack of an Energy Star rating a drawback if energy efficiency is a primary concern. Additionally, while the noise level is low, there are even quieter models on the market. The product's dimensions are compact, which is beneficial for smaller windows, but it might limit its cooling power for larger rooms. Perfect for individuals seeking a balance between quiet operation and effective cooling in a small to medium-sized space.

The BLACK+DECKER Smart Portable Air Conditioner with Heat offers a mixed bag of features for those looking for a quiet and efficient cooling and heating solution. One of its strong points is its versatility, functioning as a 4-in-1 unit that can cool, heat, dehumidify, and act as a fan, making it suitable for year-round use. With a cooling capacity of 10,000 BTU (DOE) and heating capacity of 10,000 BTU, it's designed for rooms up to 700 sq. ft., which covers a decent-sized area.

The device is also smart-enabled, allowing you to control it via a mobile app or through voice commands using Amazon Alexa or Google Assistant, which adds convenience for tech-savvy users. It also features a 'Follow Me' remote control, providing precise temperature control based on the remote's location. However, there are some drawbacks. The noise level is 54 dB, which while not extremely loud, may not be the quietest option available on the market—something to consider if noise is a top priority. The Seasonal Energy Efficiency Ratio (SEER) is 6.2, which is on the lower side, meaning it may not be the most energy-efficient choice. Additionally, it's not Energy Star rated, so it might not offer the best energy savings.

Installation is relatively straightforward with the included window kit, making it easy to set up, but keep in mind that it's a portable unit and might take up some floor space. Weighing 35 pounds, it's relatively easy to move around. This unit could be a good fit for those who need a versatile, smart-enabled air conditioner and heater, but if you need the quietest and most energy-efficient option, you might want to explore further.

The BLACK+DECKER 8,000 BTU Portable Air Conditioner is a versatile option for cooling spaces up to 350 sq. ft. It's compact and portable, making it easy to move from room to room with the included casters and side handles. The 54 dB noise level means it operates relatively quietly, which is essential for those seeking a peaceful environment.

With a Seasonal Energy Efficiency Ratio (SEER) of 5.4, it’s not the most energy-efficient unit on the market, so it may lead to higher electricity bills in the long run. However, its 3-in-1 functionality, serving as an air conditioner, dehumidifier, and fan, adds to its versatility and utility. The Follow Me remote control feature is quite handy as it allows for precise temperature control. The included installation kit makes setting up the unit straightforward and user-friendly.

On the downside, the cooling capacity, while sufficient for small to medium rooms, may not be adequate for larger spaces. Additionally, it’s relatively heavy at nearly 53 pounds, which might be a consideration for those with mobility concerns. This unit is best suited for users who prioritize portability and low noise operation over energy efficiency.