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10 Best Quietest Window Air Conditioner (AC) Options in 2021

We all love a peaceful and undisrupted sleep at night. Especially after working all the long, all we want is a quiet and cozy place to sleep. Where beds are made, the room represents serenity, and AC is on. But, if the AC makes disturbing noises?

Let us not fool ourselves – you’ll find unquestionably no serenity if your  AC unit is making so many disturbing noises next to you. So why should you spend the night in discomfort?

If you do not use an air conditioner during the summer, you will find it difficult to sleep well. But, if you use a loud AC, you cannot sleep at all. The best window AC unit is the one that can cool down your room without being too noisy.

Top-Selling Quiet Window Air Conditioner On Amazon

Bestseller No. 1
Midea 8,000 BTU U-Shaped Smart Inverter Air Conditioner –Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35%...
  • ULTRA QUIET - The U-shape design of Midea U Smart Inverter AC uses your window to block noise outside. The highly-efficient...
  • MORE THAN 35% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to...
  • SMART CONTROL - Midea U Smart Inverter AC is Wi-Fi enabled and can be controlled from anywhere using the MSmartHome app on iOS or...
SaleBestseller No. 2
LG 5000 BTU Window Air Conditioners [2023 New] Easy Mechanical Control Ultra-Quiet Compact-size Cools Washable Filter 150 Sq.Ft. for Small Room AC Unit air...
  • [Maximum Cooling] Cooling Coverage up to 150 Square ft. is ideal for cooling small rooms with 5,000 BTU window air conditioner for...
  • [Quiet & Easy to Control] LG Air Conditioners operate at sound levels as low as 50dB (low mode). Mechanical controls for AC unit...
  • [Easy Installation & Cleaning] This AC has a fixed chassis and installs easily in a double hung window with included EZ Mount...
Bestseller No. 3
Midea U-Shaped Inverter Window Air Conditioner 12,000BTU with Open Window Flexibility, Robust Installation,Extreme Quiet, 35% Energy Saving, Smart Control, Alexa,...
  • More than 35% Energy Savings: With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to other...
  • Extreme Quiet: 9 times quieter than some traditional units. The U-shape blocks the noise from the cooling system using your...
  • Flexible window open: Midea U-shaped design allows your window to open, bringing fresh air into your home anytime allowing you to...
SaleBestseller No. 4
Frigidaire FHWC063TC1 Window Air Conditioner, 2024 6,000 BTU Electronic Controls, White
  • Multi-Speed Fan: Features three different fan speeds, for more cooling flexibility.
Bestseller No. 5
LG 8,000 BTU Window Air Conditioner, 115V, Cools 340 Sq.Ft. for Bedroom, Living Room, Apartment, Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan...
  • Window Air Conditioner with Low Noise Performance: This ac window unit operates at sound levels as low as 53dB (in low mode)...
  • Multiple Fan Speeds: 3 cooling and fan speeds with Auto Cool allow you to customize your cooling; Effortlessly adjust the ac...
  • Maximum Usability: This window unit ac includes an easy to use digital control panel and remote control; 4-way air deflection...
Bestseller No. 6
Midea 8,000 BTU U-Shaped Smart Inverter Air Conditioner – Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Compatible with Alexa, 35% Energy...
  • ULTRA QUIET - The U-shape design of Midea U Smart Inverter AC uses your window to block noise outside. The highly-efficient...
  • MORE THAN 35% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to...
  • SMART CONTROL - Midea U Smart Inverter AC is Wi-Fi enabled and can be controlled from anywhere using the MSmartHome app on iOS or...
Bestseller No. 7
LG 6,000 BTU Dual Inverter Smart Window Air Conditioner, 115V, Cools 250 Sq. Ft., Ultra Quiet Operation, Up to 35% More Energy Savings, ENERGY STAR®, works with LG...
  • Ultra Quiet Operation: Revolutionary Dual Inverter technology gives powerful yet silent performance, operating at sound levels as...
  • 35% More Energy Efficient: Dual Inverter technology is up to 35% more energy efficient than the Energy Star certification...
  • Control Your Cool from Anywhere: LG ThinQ Technology lets you control your LG air conditioner from anywhere. You can start or stop...
Bestseller No. 8
LG 6,000 BTU Window Air Conditioner, 115V, Cools 250 Sq.Ft. for Bedroom, Den, Living Room, Quiet Operation, with Remote, 2 Cooling & Fan Speeds, 2-Way Air...
  • Window Air Conditioner with Low Noise Performance: This ac window unit operates at sound levels as low as 52dB (in low mode)...
  • Multiple Fan Speeds: 3 cooling and fan speeds allow you to customize your cooling; Effortlessly adjust the window unit ac air flow...
  • Maximum Usability: This window unit ac includes an easy to use digital control panel and remote control; 2-way air deflection...
Bestseller No. 9
Windmill - The Windmill AC Modern Air Conditioner with WhisperTech- Ultra-Quiet, More Efficient, and Voice-Enabled Window AC Unit - Easy Install - Includes User...
  • Ultra-Quiet Air Conditioner Window Unit For A More Comfortable Home: Curved edges and clean lines make The Windmill AC beautiful...
  • The Easiest Room Air Conditioner Installation Kit: A pre-assembled install kit has Windmill's window air conditioners ready to go...
  • Efficient Cooling: Central air-like airflow comes out at a perfect 45-degree angle. Top vents blow air up and out in the room, not...
SaleBestseller No. 10
LG 10000 BTU Window Air Conditioners [2023 New] Dual Inverter Remote WiFi Enabled App Ultra-Quiet Washable Filter Cools 450 Sq.Ft AC Unit air conditioner Easy...
  • [Maximum Cooling] Cooling Coverage up to 450 Square ft. is ideal for cooling medium to large rooms with 10,000 BTU window air...
  • [Efficient, Energy Saving Inverter Technology] LG Inverter Portable Air Conditioners are up to 35% more energy savings than the...
  • [Lo-Decibel Quiet Operation] LG Window Air Conditioners operate at sound levels as low as 44dB (sleep mode). Thanks to LG's unique...

TOP 10 QUIETEST WINDOW AIR CONDITIONER REVIEWS

1. FRIGIDAIRE 10,000 BTU WINDOW-MOUNTED AIR CONDITIONER

Frigidaire 10,000 BTU 115V Window-Mounted Compact Air Conditioner with Remote Control, White
  • 10,000 BTU compact air conditioner for window-mounted installation uses standard 115V electrical outlet
  • Quickly cools a room up to 450 square feet. with dehumidification up to 3 pints per hour
  • Low power start-up conserves energy and saves you money

The Frigidaire 10,000 BTU AC is a suitable model for those who’re looking for an AC to cool rooms of up to 450 sq. Ft. This AC has a quiet operation system that will give you the likelihood to use it while you are sleeping without you, waking up in the middle of the night.

This model comes with a built-in ionizer to purify the air. This is one of the factors that made this model top our list.

It’s because this is a beneficial feature, particularly if you have dust or pollen allergies.

Another good feature of this model is that there’s a temperature sensor in the remote control. This will enable the AC to keep a constant temperature in the room.

Pros

Quiet Compressor – The AC uses a quiet compressor so that you can sleep without your AC making awful noises.

Built-in Ionizer – This AC comes with a built-in ionizer that will eliminate impurities from the surrounding air.

Con

Inferior Materials – Some of the materials utilized for this unit’s construction are of an obscure quality

2. KOLDFRONT WAC12001W 12,000 BTU WINDOW AIR CONDITIONER

Koldfront WAC12001W 12,000 BTU 208/230V Heat/Cool Window Air Conditioner
  • 12,000 BTU 1100W/5.0A cooling; 11,000 BTU 3500W/16.0A heating functionality
  • 450- 550 sq. ft. coverage area; Remote control included; 4 operation modes; Installation hardware and weather seals included;...
  • Please note: Special 230V electrical outlet required (unit will not work with a standard 115V outlet)

The Koldfront WAC12001W is a huge capacity AC that can be used for both cooling and heating purposes. This model can provide up to 12,000 BTUs when cooling, and it can easily cover an area of up to 550 sq. Ft. As for heating capacity, the AC delivers up to 11,000 BTUs, and it can warm up surfaces of up to 450 sq. Ft.

The thing we like the most about this model is that it comes with 4-way directional louvers.  Using these louvers will guarantee that the cold or warm air the AC generates will be dispersed evenly throughout the room. Another useful feature about this unit is that it employs a thermostat. The thermostat is perfect, and it will maintain a uniform temperature in the room.

Pros

Thermostat – Not only, the thermostat will maintain a constant temperature, but it will also lower the AC’s operation costs.

Good Price – This model comes at a reasonable price, considering its cooling and heating capacity

Con

Installation Instructions Could Be Better – The AC’s installation instructions are seldom challenging to follow.

3. FRIEDRICH CHILL CP06G10B 6000 BTU WINDOW AIR CONDITIONER

The Friedrich Chill is a window AC that included many useful features. This model can produce up to 6,000 BTUs, which should be more than sufficient to cool down an area of up to 250 sq. ft.

One of the qualities we liked about this model is that it comes with various features that augment its efficiency. The AC utilizes a 24-hour thermostat that will enable you to program the unit on and off times. The digital thermostat allows the unit to keep a constant temperature in the room, and the auto-restart feature will start the AC using its previous settings.

Pros

Efficient Energy-Saving Mode – The AC’s energy-saving mode is handy, and it will noticeably lessen your expenses

Remote Control – This model comes with a remote that can fix all of its features.

Con

Wrong Installation Kit – The installation kit doesn’t include all the tools and items you’ll require for the installation.

4. FRIEDRICH EP18G33B 18000 BTU CHILL SERIES AIR CONDITIONER

Friedrich EP18G33B Window Air Conditioner, 18000 Btu, White
  • POWERFUL - 18,000 BTUs of cooling power and 12,000 BTUs of heating power that regulate a 1000 sq. ft. room can be installed as a...
  • ULTRA QUIET OPERATION - Window ac designed to cut operation noise to a minimum
  • CONTINUOUS AUTO AIR SWEEP LOUVERS - Automatically oscillate louvers left and right during cooling

The Friedrich EP18G33B is a highly efficient air conditioner that will make your home cozy during the hot season. This model can provide up to 18,000 BTUs of cold air, more than adequate to cool down an area of up to 1,000 sq. Ft.

Notwithstanding being a window AC, this unit is no less than a monster. The Friedrich is plausibly one of the most comprehensive window ACs out there, and fixing and installing it is a two-people job.

As far as the AC’s effectiveness is concerned, this model will drop the temperatures in your room quickly. Furthermore, this unit comes with a heat pump so that you can utilize it during the winters as well.

Pros

Not Loud – Despite its massive size and functional cooling capacity, this AC isn’t loud

Heat Pump – This model employs a heat pump, so it is usable during winter as well.

Con

Large – This AC is significant so that it will take up a  substantial amount of space

5. LG LW1216ER WINDOW-MOUNTED AIR CONDITIONER

Sale
LG 12,000 BTU Window Air Conditioner, 115V, Cools 550 Sq.Ft. for Bedroom, Living Room, Apartment, Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan...
  • Window Air Conditioner with Low Noise Performance: This ac window unit operates at sound levels as low as 53dB (in low mode)...
  • Multiple Fan Speeds: 3 cooling and fan speeds with Auto Cool allow you to customize your cooling; Effortlessly adjust the ac...
  • Maximum Usability: This window unit ac includes an easy to use digital control panel and remote control; 4-way air deflection...

The LG LW1216ER is a famous model, and it is obvious to see why. This AC combines a lot of serviceable functions, and it comes at a reasonable price.

We were fascinated with the features this model has to offer. The AC has a 24-hour on/off timer that is easy to program. The timer won’t only enable you to program the AC as per your needs. But, it also lessens your expenses because you don’t have to leave the unit running when you aren’t at home.

The AC also has an energy-saving mode that will decrease its consumption.

As for its cooling capacity, this model offers up to 12,000 BTUs that should cool down an area of up to 550 sq. Ft.

Pros

Remote Control – This model comes with a serviceable remote control

Not Loud – This AC is moderately silent considering its size

Con

Installation Is Somewhat Difficult – You will have to take the Air Conditioner out of the shell to install it,

6. KOLDFRONT WAC25001W 25,000 BTU WINDOW AIR CONDITIONER

Koldfront WAC25001W 208/230v 25,000 BTU Heat/Cool Window Air Conditioner - White
  • Coverage area: 1,500 sq. ft. (cool) 700 sq. ft. (heat); Three (3) fan speeds; Four (4) operation modes; 24 hour timer; 4-way air...
  • Moisture removal: 137 pints/day; 16,000 BTU heating 22.5A/4800W; 25,000 BTU cooling 11.3A/2660W
  • Fits windows between 31 & 42 wide; Minimum window height: 19.5; Dimensions 18.6" H x 26.5" W x 26.5" D

The Koldfront air conditioner is an excellent model for those who’re looking for a unit that can cool a huge area. This model is competent in cooling down a space of up to 1,500 sq. Ft. And it comes with a heat pump that makes it usable in winters too. This model will generate enough heat to warm up a room of up to 700 sq. Ft.

One of the great things we liked about this model is that it is very serviceable. This model will cool down a room in a short time, and the temperature will remain consistent once you start using the AC.

Pros

Functional Cooling Capacity – This model has an  excellent cooling capacity, and it will cool down your home even when it’s scorching outside

2-Year Warranty – This AC comes with a 2-year warranty

Con

Poor Heating Capacity – The AC works as a heater, but it’s not very effective

7. FRIGIDAIRE 15,100 BTU WINDOW AIR CONDITIONER

Frigidaire 15,100 BTU 115V Window-Mounted Median Air Conditioner with Temperature Sensing Remote Control
  • 2016 energy star: 11.8 energy efficiency Ratio (EER). Low noise level is 52 db. Medium noise level is 53 db .High noise level is...
  • 15,100 BTU median air Conditioner for window-mounted installation
  • Dehumidification up to 3.8 pints per hour. Window Height: 18-1/2 inches. Window Width: 28 inches - 40-1/2 inches

The Frigidaire window-mounted air conditioner is a good model for those who’re looking for a silent unit that is capable of cooling down a large room. Despite its massive size, this model operates silently, so you can even sleep peacefully next to it.

One of the things we loved about this model is that it comes with a step-by-step instruction manual. The manual will give a precise installation guide so that you can install the AC by yourself.

Pros

Cost-Effective – This AC comes at a reasonable  price considering its cooling capacity

Cools A Large Area – The AC is proficient of cooling down a large surface

Con

Large – This model is large, so you might find it challenging to fit it in a typical window.

8. FRIGIDAIRE FFRA1011R1 10,000 BTU AIR CONDITIONER

Frigidaire FFRA1011R1 10,000 BTU 115V Window-Mounted Mini-Compact Air Conditioner with Mechanical Controls
  • Your purchase includes One Frigidaire FFRA1011R1 Window-Mounted Mini-Compact Air Conditioner, 10,000 BTU | Window Mount Included,...
  • Air conditioner dimensions – 19” W x 14” H x 21” D | Window required dimensions - 23”-36” W x 15.5” H | Weight –...
  • Performance – 10,000 BTU | Dehumidification: 2.27 pints/hr. | Estimate cooling area – 450 Sq. Ft | EER – 10.9

It is a Window Mini-Compact AC. Now the price of this model may look too high as compared to some other ACs, but it can cool a room up to 450 square feet. Looking at this window-mounted mini-compact device, you would say that this is impracticable, but trust us, it is possible.

The British Thermal Unit of this AC is 10 000 BTUs, and it can remove up to 2.7 pt. of water from the air per hour. You could just sit on your sofa and enjoy the fast operation this AC will do for you. The system also features mechanical rotary switches and eight-way air direction control that guarantees the even distribution of the air in every corner of your space.

The decrease of bacteria and the cool, clean air are assured for the device gives you a washable filter with front, tilt-out access. You can conserve energy and save some money because of its low power start-up.

Pros:

Has 10 000 BTU

Good for large rooms

Saves energy

Eight-way direction control

Cons:

Not cheap

9. KOLDFRONT WAC10002WCO 10,000 BTU WINDOW AIR CONDITIONER

The Koldfront WAC10002WCO is an excellent cooling solution for those who need to increase the ease of a medium-sized room during the hot season. This unit produces up to 10,000 BTUs of cold air, and it can lower the temperature in a room of up to 450 sq. Ft.

It comes with proper installation instructions. A single person can install this AC but having another person to help you can make the process faster and easier.

The unit’s energy-saving mode is useful, but it might make the AC slightly less effective when it’s employed.

Pros

Easy Installation – The AC’s installation is easy and straightforward.

Energy-Star Rated – This unit is Energy-Star rated, so it is advantageous

Con

Energy Saving Mode Lowers Efficiency – Its cooler comes with an energy-saving option, but using it might make the room’s temperature go up.

10. FRIGIDAIRE FFRE0533S1 5,000 BTU WINDOW AIR CONDITIONER

Frigidaire 5,000 115V Window-Mounted Mini-Compact Full-Function Remote Control Air Conditioner, 5000 BTU, White
  • Beat the heat while remaining cool and happy on hot summer days
  • With 1465.36 W cooling power, enjoy a blast of cool air throughout your room
  • Maintain a cool and cozy indoor temperature with the capacity to cool rooms of up to 165 Sq. ft. area

The Frigidaire FFRE0533S1 is a fabulous window-mounted air conditioner for those who’re looking to enhance the comfort of a small room during the hot season. This unit will provide up to 5,000 BTUs of cold air that will cool down an area of up to 150 sq. Ft.

The feature we liked is the AC’s easy installation process and efficiency. Despite being small in size, this unit will cool down a small room very promptly, making cozy enough to sleep in, even in the hottest days of the year.

As far as the cooler’s sound is concerned, this AC is really quiet, and it won’t create any sounds louder than what a fan would make.

Pros

Cost-Effective – This model is affordable and efficient, so it’s a wise investment

Low Power Operation – The AC doesn’t exert too much power to run, so it has fewer operation costs

Con

Poor Quality Control – Some customers complain that the AC came with missing parts.

Understanding Decibel Levels

Decibels measure “the pressure of the sound waves traveling through the air from a source of noise,” according to Explain that Stuff. “You have to think about the decibel scale very carefully because it’s a logarithmic scale and it works in a different way to the scale on a ruler, which is a linear scale.”

Typically, the decibel scale goes up the ladder in powers of ten, so something that is at 50 dbA is not just a little louder than something at 40 dbA: it’s exponentially louder.

The sound of rustling leaves is approximately 20 dbA, and 30 dbA is about the same as a quiet suburb, which has all sorts of low-level, natural noises going all at once. As you decibel scale goes up, the intensity of the noise level goes up significantly.

So, you can see that little differences in decibel ratings can make a big difference in the real noise level in your home.

Picking a unit on the low end of that scale can help keep white noise to a least, and you would usually hear a remarkable difference in AC that runs at 50 dbA and one that works at 60 dbA.

Another factor to think is distance. The decibel rating of your window air conditioner maybe 50, but the ultimate “intensity” of the noise will vary based on the gap between the unit and the listener. An AC on the other side of a bedroom will not be as loud as one right next to your head while you are sleeping.

For those purposes, it is good to have an inkling of where your unit will be installed in the rooms you are looking to cool. If you know the distance between you and the AC will be longer, you may have some more flexibility in sound level.

Small rooms with little distance to work with may need smaller, quieter units to keep your ideal noise level. If your room or home doesn’t provide for window ACs, you can also find a small portable air conditioner that will fit the cooling necessities of your space.

WRAP UP

As you can see in our window AC reviews, the best window AC model is the one that can cover the area you install it in without overdoing it. Even though it can be time-taking, it is better to measure the room and its temperature drops twice before settling on a model.

Apart from being silent, the quietest window air conditioners are also effective. These ACs can cool down a room in quick continuation, without making it so cold that you’ll shiver. And the best part is, with some annual maintenance, these units can last for years if not decades.

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