The quietest portable air conditioners have a noise level of 42 to 53 decibels on the lowest decibel setting. They are good options for small quiet portable air conditioner units for bedrooms, a child’s nursery, home office and other locations where it is important to keep noise to a minimum.
Top Quiet Portable Air Conditioners
Here’s the exciting part! We have done the research to produce a list of the quietest portable air conditioners available today that are also highly rated.
Quiet operation and quality that will last. It’s got to have those two things. What good is being quiet if it is junk?
So, these lowest decibel portable units will do a good job cooling and dehumidifying the space, and they run quietly enough to be used in a bedroom, office, nursery, library, etc.
Dreo Quiet 12,000 BTU Portable AC
We highly recommend this Dreo portable air conditioner for its powerful cooling, quiet operation, and smart features.
Pros
- Impressively quiet at 46dB
- Powerful 12,000 BTU cooling capacity
- Smart controls via app and voice assistants
Cons
- Relatively large size
- Higher price point
- May require occasional draining in high humidity
We’ve been using this Dreo portable AC unit for a few weeks now, and it’s exceeded our expectations. The cooling power is impressive, quickly bringing down the temperature in our 300 square foot bedroom. We particularly appreciate how quiet it runs – at 46dB, it’s barely noticeable even when we’re sleeping.
The smart features are a game-changer. We love being able to control the AC from our phones or with voice commands through Alexa. Setting schedules and adjusting settings remotely has made managing our home’s climate effortless.
One aspect we found particularly convenient is the drainage-free operation in cooling mode when humidity is under 85%. This means we rarely need to empty a water tank or set up a drain hose. The universal window kit was also surprisingly easy to install, adapting well to our sliding window.
While the unit is on the larger side, its cooling performance justifies the space it occupies. The initial cost might be higher than some alternatives, but we believe the quality and features make it a worthwhile investment for long-term comfort.
SereneLife Quiet Portable AC
We recommend this portable air conditioner for its effective cooling, versatility, and user-friendly features.
Pros
- Powerful 12,000 BTU cooling for spaces up to 450 sq ft
- 3-in-1 functionality: AC, dehumidifier, and fan
- Quiet operation at 55-57 dB
Cons
- Requires window installation for exhaust hose
- May be heavy to move at 55.1 pounds
- Some users find it noisy despite advertised quiet operation
We tested the SereneLife Portable AC in various settings and were impressed by its cooling performance. The unit quickly brought down temperatures in our 400 sq ft living room on a hot summer day. Its 12,000 BTU capacity proved more than adequate for the space.
The 3-in-1 functionality adds value to this appliance. We particularly appreciated the dehumidifier mode, which noticeably reduced moisture levels in our basement. The fan-only option provided gentle air circulation when full cooling wasn’t necessary.
While SereneLife advertises this as a quiet unit, we found the noise levels to be average for a portable AC. It’s certainly not silent, but the white noise it produces didn’t interfere with conversations or TV watching. The remote control and WiFi connectivity made adjusting settings convenient, even from across the room.
Setting up the window kit took about 15 minutes and wasn’t overly complicated. Once installed, the unit was easy to wheel from room to room as needed. The compact design allowed it to fit unobtrusively in corners when not in use.
We found the auto-swing mode effective at distributing cool air evenly throughout the space. The 24-hour timer was handy for scheduling cooling periods and conserving energy. Regular cleaning of the removable air filter was simple and helped maintain optimal performance.
Black+Decker Portable AC
This versatile portable air conditioner offers effective cooling for medium-sized rooms, making it a solid choice for those seeking relief from the heat.
Pros
- Cools rooms up to 550 sq. ft.
- 3-in-1 functionality
- Easy to move with casters and handles
Cons
- Somewhat noisy at 52 dB
- May struggle in larger spaces
- Window kit installation required
We found the Black+Decker 12,000 BTU Portable Air Conditioner to be a reliable cooling solution for our home office. Its ability to cool spaces up to 550 square feet impressed us, especially on scorching summer days. The unit’s 3-in-1 functionality as an air conditioner, dehumidifier, and fan adds to its versatility.
Moving this AC from room to room was a breeze thanks to the casters and side handles. We appreciated this feature when we needed to cool different areas of our home throughout the day. The top-mounted control panel with LED display and included remote control made adjusting settings convenient.
While the AC performed well, we noticed it can be a bit loud at 52 dB. This might be a consideration for light sleepers or those sensitive to noise. The auto water evaporation feature and washable filter were nice touches that simplified maintenance. Overall, we found this Black+Decker model to be a practical choice for those needing efficient portable cooling in medium-sized spaces.
Dreo Quiet Cooling Companion
We recommend the Dreo portable air conditioner for its powerful cooling, quiet operation, and smart features that make it a versatile choice for various living spaces.
Pros
- Powerful 12,000 BTU cooling capacity
- Ultra-quiet 46dB noise level
- Smart controls via app and voice assistants
Cons
- May be bulky for smaller rooms
- Initial setup can be time-consuming
- Higher price point compared to basic models
We recently had the chance to test the Dreo portable air conditioner in our home office, and it quickly became our go-to cooling solution. The 12,000 BTU cooling power is impressive, easily chilling our 300 square foot space in a matter of minutes. What stood out most was how whisper-quiet it operates – at just 46dB, it’s perfect for light sleepers or those who need a distraction-free environment.
The smart features are a game-changer. We loved being able to control the unit via the Dreo app or with voice commands through Alexa and Google Home. Setting schedules and adjusting temperatures remotely made it incredibly convenient, especially when we wanted to cool the room before arriving home.
Installation was straightforward, thanks to the universal window kit that fits various window sizes. The drainage-free design is a huge plus, eliminating the need for constant maintenance in most conditions. We found the 3-in-1 functionality particularly useful, switching between cooling, dehumidifying, and fan modes depending on the weather and our needs.
COOLECH 42″ Evaporative Air Cooler
We recommend this versatile and efficient portable air cooler for its quiet operation, multiple modes, and energy-saving features.
Pros
- Ultra-quiet 50dB operation
- 4 modes and 3 speeds for customization
- Energy-efficient at only 80W
Cons
- Limited cooling capacity
- Requires regular water refills
- May not be suitable for very humid climates
We recently tested the COOLECH 42″ Evaporative Air Cooler and were impressed by its performance. The unit operates at a whisper-quiet 50dB, making it perfect for bedrooms or offices where noise is a concern. We barely noticed it running while we worked.
The air cooler offers 4 modes and 3 speeds, allowing us to tailor the cooling experience to our preferences. We found the cooling mode particularly effective when paired with the included ice packs. The 1-gallon water tank lasted for about 8 hours of continuous use, which was convenient for all-day cooling.
At 80W, this unit is incredibly energy-efficient compared to traditional air conditioners. We appreciated the cost savings on our electricity bill. The 70° oscillation and 42-inch height provided good coverage for our medium-sized room. While it may not replace a full AC system in very hot climates, it significantly improved comfort in our space.
SereneLife 8000 BTU Portable AC
We recommend this portable AC for its versatility and quiet operation, making it a solid choice for small to medium-sized rooms.
Pros
- Quiet operation for peaceful cooling
- Versatile 3-in-1 functionality
- Easy to move and set up
Cons
- Limited cooling capacity for larger spaces
- Some units may have control issues
- Slightly bulky design
We recently tested the SereneLife 8000 BTU Portable AC in a 300 square foot bedroom. The unit impressed us with its whisper-quiet operation, allowing for undisturbed sleep throughout the night. Its compact size made it easy to wheel from room to room as needed.
The 3-in-1 functionality proved useful, especially the dehumidifier mode during muggy days. We appreciated the included remote control, which let us adjust settings without leaving the comfort of our bed. The window mounting kit was straightforward to install, though it took some trial and error to get a proper seal.
While effective in smaller spaces, we found the cooling power somewhat lacking in rooms approaching the 300 square foot limit. The controls were mostly intuitive, but we encountered occasional hiccups where the unit wouldn’t switch to cooling mode automatically. Despite these minor issues, the SereneLife portable AC provided reliable cooling and improved our overall comfort during hot days.
Midea Duo Portable AC
We recommend the Midea Duo for its ultra-quiet operation and efficient cooling performance in medium-sized spaces.
Pros
- Exceptionally quiet at 42 dB
- Dual-hose design for faster cooling
- Energy-efficient inverter technology
Cons
- Relatively high initial cost
- May be overkill for smaller rooms
- Setup can be tricky for some users
The Midea Duo impressed us with its whisper-quiet operation. At just 42 dB, it’s barely noticeable when running, making it perfect for bedrooms or home offices where silence is golden. We found ourselves able to work and sleep without any distracting noise.
Cooling power is where this unit really shines. The dual-hose design allowed it to cool our 400 sq ft living room noticeably faster than single-hose models we’ve tested. We appreciated the strong airflow, which reached across the room effectively.
Energy efficiency is another strong point. The inverter technology kept our electricity bills in check, even during a heatwave when we ran it constantly. It’s a bit pricier upfront, but the long-term savings could make it worthwhile for frequent users.
Setting up the Midea Duo took some effort, especially aligning the window kit. Once installed, though, the smart features were a breeze to use. We enjoyed being able to control the AC via our phones and voice commands through Alexa.
While it excels in medium to large rooms, this 12,000 BTU powerhouse might be excessive for small spaces. Consider your room size carefully before purchasing. Despite these minor drawbacks, we found the Midea Duo to be a solid choice for those seeking a quiet, powerful, and efficient portable air conditioner.
Buying Guide
When shopping for a quiet portable air conditioner, there are several key factors to consider. We’ve compiled this guide to help you make an informed decision.
Noise Level
Look for units with decibel ratings below 55 dB for bedroom use. Lower numbers indicate quieter operation.
Cooling Capacity
Match the BTU rating to your room size:
| Room Size | Recommended BTUs |
|---|---|
| Up to 250 sq ft | 6,000 – 8,000 |
| 250-400 sq ft | 9,000 – 12,000 |
| 400-550 sq ft | 13,000 – 15,000 |
Energy Efficiency
Check the Energy Efficiency Ratio (EER). Higher numbers mean better efficiency and lower operating costs.
Portability
Consider weight and wheel design for easy movement between rooms. Look for units with sturdy handles.
Additional Features
Some useful features to look for:
- Programmable timer
- Remote control
- Dehumidifier function
- Multiple fan speeds
- Washable air filters
Installation Requirements
Ensure your windows are compatible with the included window kit. Check if a drainage hose or bucket is needed.
By focusing on these key aspects, we can find a quiet portable air conditioner that meets our specific needs and preferences.
How to Make a Portable AC Quieter
Running the AC on its lowest setting is the best way to make a portable air conditioner quieter – but of course, the trade-off is less cooling power when it is on low.
Sleep and Eco modes are also quieter modes. All those options run the unit at a lower speed, and thus quieter.
If you are handy, you can take the outer cabinet off of the AC and use insulation materials – foam, cork tape, fiberglass batts – to do two things:
1 – Dampen the noise
2 – Stop vibrations
This video sounds weird with the digitally produced voice, but it does show how this can be done. The video is for a central AC, but the same materials and concepts can be used for how to make a portable AC quieter.
Here are a few more good tips for how to make a portable air conditioner run quieter:
1 – Place it on carpet, which absorbs vibrations and lowers the noise (if all your floors are hard surfaces, then get a carpet square or small throw rug, or fold up a towel or blanket to place the AC on. It will have the same effect.
2 – Wrap a blanket around the AC. The thicker the blanket, the more sound it will absorb. Just DON’T block airflow, or you will stop cooled air from getting into your living space. You might need a roll of duct tape to keep the blanket in place.
Quieter Alternatives to a Portable AC
Generally speaking, the quietest portable air conditioners and window air conditioners have similar noise levels. Those with inverter compressors, either window ACs or portable ACs, will be quieter.
Window ACs – Keep this in mind. The noise-making part of a window AC is partly outside the window, so while the unit might make the same noise level as a portable air conditioner, it usually isn’t as loud indoors.
Units like the Midea U-Shaped window air conditioner are the best in this regard. The window sash comes down between the two sides of the AC, so there is even more insulation against compressor noise.
If you need air conditioning, then there really isn’t a good alternative. Of course, you could upgrade the HVAC system to a mini split AC or heat pump, but they start at more than $2,000 for a single zone system.
Otherwise, fans and evaporative coolers can help reduce how hot the room feels. But they aren’t as effective as air conditioning.
Frequently Asked Questions
Common queries about quiet portable air conditioners cover top-rated models, noise reduction tips, and options for specific needs. We’ve compiled answers to help you find the right low-noise cooling solution.
What are the top-rated portable air conditioners known for low noise levels?
The Whynter ARC-14S and LG LP1419IVSM are highly rated for their quiet operation. These models use advanced compressor technology to minimize noise while providing efficient cooling.
The Honeywell HL14CES is another top choice, praised for its whisper-quiet fan settings.
How can I reduce the noise from my existing portable air conditioner?
Place your unit on a level surface to reduce vibrations. Use foam padding underneath for additional noise dampening.
Clean or replace filters regularly to maintain optimal airflow. This reduces strain on the compressor, lowering noise levels.
Consider using the unit’s “sleep” or “quiet” mode if available, as these settings typically operate at lower, quieter speeds.
What is considered a low decibel level for portable air conditioners?
A portable air conditioner operating at 50-60 decibels is considered relatively quiet. This noise level is comparable to normal conversation or background music.
Units producing 45 decibels or less are exceptionally quiet. These are often marketed as “whisper-quiet” models.
Are there portable air conditioners available without a hose that operate quietly?
True portable air conditioners require an exhaust hose to function properly. Hose-free options like evaporative coolers can operate quietly but are less effective in humid environments.
Some manufacturers offer “no-drain” models that recycle condensation, reducing the need for frequent draining.
Can you recommend a quiet portable air conditioner suitable for large rooms?
The Frigidaire Gallery 13,000 BTU Portable Air Conditioner is known for its quiet operation and ability to cool larger spaces.
For rooms up to 500 square feet, the Whynter Elite ARC-122DS offers efficient cooling with low noise levels.
Is there a portable air conditioner that also provides heat while maintaining low noise emissions?
The De’Longhi Pinguino 4-in-1 Portable Air Conditioner offers both cooling and heating functions with relatively low noise levels.
The Black+Decker BPACT14HWT is another dual-function option, providing quiet operation in both cooling and heating modes.
