According to a study, most people spend a third of their life sleeping at home. Thus, a quiet window air conditioner can significantly improve the quality of your life.
If you don’t use an air conditioner unit during summer, you won’t be able to sleep well. If you have a loud air conditioner, then it is almost impossible to get a good night’s sleep. That is why the best and quietest window air conditioner unit is one which can cool your room, without being too loud.
Due to the vast variety of air conditioners available today, choosing the best one is often a difficult choice. To help you make the best decision, following are reviews of some of the quietest window air conditioners. Let’s get started!
- Top 10 Quietest Window Air Conditioners In 2021 Reviews
- 1 Koldfront WAC25001W 208/230v 25,000 BTU Heat/Cool Window Air Conditioner
- 2 Friedrich EP18G33B Window Air Conditioner
- 3 Frigidaire 15,100 BTU 115V Window-Mounted Median Air Conditioner
- 4 Frigidaire 10,000 BTU 115V Window-Mounted Compact Air Conditioner
- 5 Frigidaire FFRA1011R1 10,000 BTU 115V Window-Mounted Mini-Compact Air Conditioner
- 6 Haier Serenity Series 6,000 BTU 115V Window Air Conditioner
- 7 Haier ESAQ406P Serenity Series 6050 BTU 115V Window Air Conditioner
- 8 LG Energy Star Window Air Conditioner
- 9 Koldfront WAC12001W 12,000 BTU Window Air Conditioner
- 10 Friedrich Chill CP06G10B 6000 BTU Window Air Conditioner
- Quietest Window Air Conditioner Buying Guide
Top 10 Quietest Window Air Conditioners In 2021 Reviews
|Name||BTU||Room Size (sq. ft.)||Weight (lbs)||Rating|
Room Size (sq. ft.)
|(4.4 / 5)|
Room Size (sq. ft.)
|(3.8 / 5)|
Room Size (sq. ft.)
|(4.2 / 5)|
Room Size (sq. ft.)
|(3.9 / 5)|
Frigidaire FFRA1011R1 10,000 BTU 115V Window-Mounted Mini-Compact Air Conditioner
Room Size (sq. ft.)
|(4 / 5)|
Room Size (sq. ft.)
|(3.6 / 5)|
Room Size (sq. ft.)
|(3.8 / 5)|
Room Size (sq. ft.)
|(3.7 / 5)|
Room Size (sq. ft.)
|(4.3 / 5)|
Room Size (sq. ft.)
|(4 / 5)|
1 Koldfront WAC25001W 208/230v 25,000 BTU Heat/Cool Window Air Conditioner
One of the quietest window air conditioners you can buy, this unit can easily cool a large surface, without making too much noise. This model is able to cool down an area of up to 1500 sq.ft.
But that’s not all! It also comes with a heat pump which allows you to use the unit in winters as well. It is capable of producing enough heat to warm up an area of up to 700 sq. ft.
This air conditioning unit is also very effective and can cool down or warm up a room in a very short period of time. It also ensures that the temperature of the room remains constant, once you switch it on.
This model does not require a wall sleeve and can be fitted in windows which measure between 31” and 42” wide. Moreover, it also features four operation modes, 4-way air directional louvers, three fan speeds, and a 24-hour timer.
But there’s a catch! Although the unit can be used as a heater, it’s heating capacity is not as effective as its cooling capacity.
2 Friedrich EP18G33B Window Air Conditioner
Friedrich EP18G33B is one of the quietest window air conditioner units available today. It is a very efficient model which is able to produce 18000 BTUs of cold air, allowing it to cool down a room of up to 1000 sq easily. ft.
But that’s not all. This unit is also very effective and can increase or lower the temperature of the room in a short period of time. Moreover, a heat pump is also included, allowing you to use the model in winters as well.
Although this model is a window air conditioner, it is still big in size. One of the largest window ACs available today, an extra set of hands might be needed to mount and install it. It also requires a two hundred and thirty-volt outlet.
3 Frigidaire 15,100 BTU 115V Window-Mounted Median Air Conditioner
If you’re looking for a silent unit which can quickly cool down a large room, then the Frigidaire window-mounted air conditioner is certainly a good choice. Although the unit is large in size, it still runs silently, allowing you a comfortable, good night’s sleep.
This unit also includes an instructions manual. The manual is easy to follow and provides a clear installation guide. This allows you to install the unit by yourself without too much difficulty. However, it is advisable to ask another person for help due to the unit’s heavyweight.
A temperature sensing remote control enables you to set and maintain the room temperature from across the room. This unit is also designed with a multi-speed fan, which features three different speeds. Meanwhile, an 8-way comfort control design enables you to control the direction of the cool air.
But that’s not all! Thanks to its clean air ionizer, this unit removes pollen and any other impurities from the air, making it perfect for allergy sufferers. Insulation strips and side curtains are also included to prevent any leaks or air coming from the outside.
This air conditioner also comes with an economy and cool mode. The cool mode will cool down the room to the desired temperature. Meanwhile, the economy mode will cool down the room to the set temperature. It will then turn on again if the room temperature starts to rise.
4 Frigidaire 10,000 BTU 115V Window-Mounted Compact Air Conditioner
One of the quietest window air conditioner units available, the Frigidaire 10,000 BTU air conditioner is capable of cooling rooms measuring up to 450 sq. ft. With a quiet operation, this model allows you to sleep comfortably without waking up.
The best part? This model comes with a built-in ionizer which purifies the air from any impurities. This is an extremely useful feature, especially if you suffer from any pollen or dust allergies.
But that’s not all! This model also features a temperature sensor in the remote control. This sensor allows the AC to maintain the desired temperature in the room.
A low power start-up and operation further help conserve energy, consequently saving you money. This unit is also equipped with a multi-speed fan and an 8-way comfort control design. This allows you to easily control the direction of the air, regardless of where the unit is mounted.
5 Frigidaire FFRA1011R1 10,000 BTU 115V Window-Mounted Mini-Compact Air Conditioner
The Frigidaire FFRA1011R1 mini-compact air conditioner is capable of quickly cooling rooms measuring up to 450 square feet on hot days. Its quiet operation further ensures a comfortable sleep.
Equipped with 10,000 BTUs, this model is able to remove 2.7 pt. of water per hour from the air. The best part? This unit also features an eight-way direction control and mechanical rotary controls. This further ensures that air is distributed evenly to every corner of the room.
Thanks to its washable filter with front, tilt-out access, this model guarantees cool, clean air and a healthier, more comfortable environment. It also reduces room odors, bacteria, and any other impurities from the air. Its low power start-up further conserves energy and consequently reduces your cost.
But, there’s a catch. Although this unit might look smaller, its price is higher than other models available today.
6 Haier Serenity Series 6,000 BTU 115V Window Air Conditioner
Another unit in this quietest window air conditioner review list is the Haier Serenity Series 6,000 BTU 115V Window Air Conditioner. As the name suggests, this model is part of the Serenity Series by Haier. Operating at only 43 decibels on a low setting, this 6,000 BTU unit features a compressor blanket for noise reduction.
With a cross-flow fan and a dual motor design, this model also comes with a remote, dehumidify mode, on/off timer, sleep mode, auto cool, and an energy saver setting.
This unit is able to cool a room measuring up to 250 sq ft. But the best part? The amount of sound it produces is almost as same as a white noise machine. However, it doesn’t completely block out all sounds, and you’ll still be able to hear footsteps moving in the hall.
Although you might have to turn your TV volume up with other AC units, you won’t need to do so with this model. That’s because the noise sounds more like a fan than the rumble of a compressor. Moreover, the remote is also simple and easy to use.
To sum it up, this model is one of the quietest window air conditioners available today. It is well-made to ensure durability and is also capable of cooling a large area quickly.
But there’s a catch. This unit is more expensive than other models in the market. While installation is easy, it is advisable to have an extra pair of hands due to its heavy weight.
7 Haier ESAQ406P Serenity Series 6050 BTU 115V Window Air Conditioner
Another part of Haier’s Serenity Series, this 6,050 BTU unit is surely one of the quietest window air conditioners available. This model operates at only 43 decibels and is equipped with a compressor blanket to reduce noise.
Thanks to its cross flow fan and dual motor design, it has greater air control, offering stronger, smoother airflow. But that’s not all. This unit also features a sleep mode, auto cool, dehumidify mode, energy saving mode, and a24-hour on and off timer.
Furthermore, it can quickly cool rooms measuring up to 250 square feet. A fully functional remote is also included, allowing you to change its settings from across the room easily.
Due to its innovative design, this unit sits more inside your window as compared to other models. As a result, the vent is placed on the top, sending cool air upward into the room.
Measuring only 7.5 inches from the outside window sill, this unit also looks better than other models. But the best part? It sounds much smoother and quieter than similar models which have the same BTU rating.
However, this unit might make a rattling noise once it is turned on. But, this noise will not remain constant and will go away quickly.
8 LG Energy Star Window Air Conditioner
The LG LW6017R is one of the most affordable and quietest window air conditioner units available today. This 6,000 BTU model can easily cool rooms measuring up to 250 square feet. It also comes with an on/off timer and an energy saving function.
But that’s not all. This unit features a built-in dehumidifier, three cooling speeds, and three fan speeds which you can choose from. A full-function remote, an installation kit and the LG patented anti-corrosion protection is also included.
This new model is similar to its 2016 version, maintaining most of the same features and quiet performance. Having a noise level of only 52 dBa, this unit ensures you get a comfortable sleep without waking up, even when it is running.
Thanks to its innovative design, the vent points upward rather than out towards the room. But why does this matter? With its vent pointing upwards, this unit cools the room more efficiently without blowing any conditioned air on you while you sleep. This is an extremely useful feature as being directly exposed to forced air can be damaging to your health.
Furthermore, the installation process is also quite easy. Weighing around 40 pounds, you might be able to install it alone. However, an extra pair of hands might be needed, depending on your weight.
This unit can easily be placed into the window. You can remove and install the window in a matter of minutes without making any permanent holes or fasteners in the window jambs or the frame. This is extremely useful, especially if you plan to take the unit with you when you move.
However, make sure you don’t get the adhesive stick on your hand during the installation process. If you do, you can wash off the adhesive with soap and water.
9 Koldfront WAC12001W 12,000 BTU Window Air Conditioner
A large capacity unit, the Koldfront WAC12001W can be used for both heating and cooling purposes. Capable of producing up to 12,000 BTUs while cooling, it can easily cool down an area measuring up to 550 square feet.
When used as a heater, this model is able to produce up to 11,000 BTUs and can warm up an area of up to 450 sq. Ft.
This unit also features 4-way directional louvers. But why are they important? The louvers ensure an even distribution of the cold or warm air given out by the AC.
But that’s not all. This unit is also equipped with a thermostat. The thermostat is accurate and helps the AC in maintaining a constant temperature in the room.
Equipped with several energy-saving features, this unit comes with a sleep mode, an Energy Saver mode, and a Check Filter light. It also features three different fan speeds and a control panel with a digital temperature display. This further allows you to control airflow.
The Sleep function conserves energy, consequently helping you cut down on running costs. A fully functional remote control is also included, allowing you to adjust the fan speed and temperature settings from across the room.
10 Friedrich Chill CP06G10B 6000 BTU Window Air Conditioner
One of the quietest window air conditioners available, the Friedrich Chill is a unit with many useful features. Able to produce up to 6,000 BTUs, it is capable of cooling down an area measuring up to 250 sq. Ft.
This AC is equipped with a 24-hour thermostat which allows you to program it’s on and off times. This further improves the unit’s efficiency, enabling it to maintain a constant temperature in the room. Thanks to its auto-restart feature, this unit will turn on using its previous settings.
This model also comes with three cooling and fan-only speeds. But that’s not all. It also features Auto Air Sweep swing louvers, ensuring an evener air distribution to all parts of the room.
With a quiet operation, this model ensures you get a good night’s sleep without waking up. It also includes a digital remote control, allowing you to change the temperature settings from across the room.
The best part? The Friedrich Chill is energy efficient. It helps conserve energy and reduces running costs by operating the fan only when it is cooling.
Quietest Window Air Conditioner Buying Guide
Before choosing the quietest window air conditioner, let’s take a look at some of the aspects you should consider which will help you choose a unit that suits you best.
- Decibel Levels
One of the most important factors to consider when choosing an air conditioner is its decibel scale. Decibel levels can be defined as the density of sound waves traveling through the air from the noise source. To put it simply, the decibel level of an air conditioner can help you determine the sound intensity which will come from the unit.
Decibel levels usually increase in powers of 10. For example, a window air conditioner with 40dBa is way quieter than a unit with 50dBa.
Another important thing to remember is that the intensity of the decibel level continues to increase the higher we go up the ladder. Although the noise level difference between a 70dBa unit and a 60dBa unit seems relatively small, the 70dBa unit is almost twice as loud as the 60dBa unit.
In simpler terms, it is essential that you consider the decibel rating of the unit you intend to purchase. This is because it will greatly determine the noise levels in your room. Thus, it is advisable to select a unit with a low decibel rating to help reduce the white noise produced.
It is also important that you consider the distance along with the decibel level. This is because the overall sound intensity is affected by the distance between you and the unit as well. If you’re planning on installing the unit far from the room you want to cool, then you can have some flexibility when choosing the decibel level of the air conditioner.
- Energy Efficiency
The ability of a model to conserve energy is another important aspect to consider before purchasing a window air conditioner. The energy efficiency ratio determines a unit’s energy consumption level and consequently, its running costs.
Most window air conditioning units already come with an energy efficiency ratio certification. Most models have a ratio ranging from a minimum of 8.0 and a maximum of 12.0. Hence, it is not advisable to purchase a model which has an energy efficiency ratio below 8.0.
- BTU Capacity
The BTU capacity greatly determines the operation and performance of a model. Basically, the BTU measures the efficiency and capability of a unit in converting warm air into cold air.
It is important that you take the BTU capacity of a unit into account. This is because it will help you accurately determine the size of the room it suits best. Don’t worry; we’ll discuss more on this later!
It would be extremely disappointing to purchase an air conditioner, only to find out that it doesn’t fit your window. Hence, it is essential that you purchase a unit which fits your window perfectly.
Most air conditioners available today are designed to fit both single and twofold hung windows. It is important that you check the dimensions, along with the model, to ensure that the unit will fit your window perfectly.
Furthermore, if you’re planning to purchase an air conditioner which can be installed through the wall, make sure you check the user’s manual for wall installation. Installing the unit in the wall by yourself can be quite difficult. Hence, it is advisable that you hire a professional to get the job done.
Every individual looks for a product which offers the best value for money. In this case, how about a quiet air conditioner which delivers a high-performance at the same time?
Keeping this in mind, it is essential that you consider the quality of the unit when looking for the quietest window air conditioner. A quality air conditioner will further ensure durability, longevity, and reliability.
- Temperature Leaks
Another important thing to consider before making your decision is the room’s temperature leaks. The room’s insulation, sun exposure, and the dimensions and number of windows can have a great influence temperature leaks.
A room with only a single window will have fewer temperature leaks as compared to a room with several windows. Moreover, a well-insulated room will also lose fewer degrees as compared to a non-insulated one.
How To Get A Quiet Cooling Experience
Purchasing the quietest window air conditioner will be of no use if you do not maintain or handle the unit correctly. Let us look at some of the factors you should keep in mind when using the air conditioner.
- Check The Power Cord
If the power cord is twisted, worn down, or frayed, the unit will not be supplied with enough power. This can lead to intermittent stops and vibrating noises once the unit restarts. Make sure you replace the cord or hire a professional to do it if this issue occurs.
With proper maintenance, care, and installation, your unit will surely give you years of cool air and quiet. If you’re uncertain about any of the steps involved in using or installing it, make sure you hire a professional or experienced person to help.
- Keep The Filter Clean
Most models come with a filter screen inside or near the faceplate. Make sure you remove the screen and clean it at least once a week if you’re using your unit excessively. Most units will also inform you when it’s time to change the filter.
- Check The Insulation
Most units are designed with insulation in the walls and faceplate to reduce noise. If this insulation is missing, torn, or worn out, it is essential that you replace it with material which is resistant to moisture.
Make sure the insulation is packed tightly in the faceplate and walls to reduce noise from the unit. If you are uncertain or don’t know how to do this, hire a professional, or have an experienced friend help you.
- Check The Moving Parts
Make sure you check all mechanical parts are in working order before installing the unit. Check the fan blades inside the front face of the machine to see if they’re straight. If they aren’t, the fans can rub against the faceplate and make an extremely irritating noise.
Make sure you also check the model’s fan attachment to ensure everything is in order. You can also add any type of lubricating spray to the rotating plate so that it runs smoothly.
- Install The Machine Properly
If the air conditioner isn’t mounted tightly or installed properly to the window, the unit is going to hum, buzz, and rattle loudly. Hence, make sure that the frame is firm enough to support the unit before installing it.
You can add caulk or putty to the edges to tighten the fastenings of the window. This will create an airtight seal which will be able to support the unit fully.
- Put It In A Shaded Area
Even if you purchase the highest quality AC, it will be unable to function at its best in full sunlight. Thus, try to put the AC in a shaded window. If you do not have a shaded window, you can put an awning over it to create shade. This will help the unit function efficiently and at its optimal capacity.
Power Vs. Room Size
If you purchase a model with a BTU capacity, which is extreme on both ends, then the unit will be unable to function properly. For example, if you purchase a unit with a low BTU capacity, it will be unable to supply cold air as required. Meanwhile, a high BTU capacity can result in a rampant temperature drop, which can leave the room cold and sweaty.
To ensure you make the correct decision, let’s look at the proper room size, which goes with the BTU capacity. For instance, a unit with a 5000 BTU capacity is ideal for an area measuring up to 150 square feet.
|BTU Capacity||Maximum Cooling Area (sq. ft.)|
The above-mentioned measurements can help you make the correct decision. However, you might have to make a few changes to the BTU capacity in the event of the situations listed below:
- Reduce the BTU by 10% if sunlight blocks the room.
- If there is a large number of people in the room, add 600 BTU for each.
- In case you need a unit for the kitchen to cool the area while cooking, add 4000 BTU.
- Add BTU by 10% if the room is exposed to too much sunlight, is poorly insulated, or has a high ceiling.
Determining Running Costs
Electricity is usually thought of and measured in terms of rate of flow, current, and amperes. However, the cost of electric energy is usually calculated by total energy use, in kilowatt-hours.
Air conditioner units with higher energy efficiency ratios (EER) generate more BTUs with fewer kWh. This reduces your operating costs. But what is EER? The EER can be defined as the number of BTUs you get from one-thousandth of a kW.
Running costs are usually determined by estimating electricity costs. For example, if electricity costs 13 cents per kWh and you have an 11,000 BTU unit with a 10.5 EER which runs for 6 hours per day for four months, then costs will be calculated by:
(1W / 10.5 EER) * (11,000 BTU) * (13 cents / 1kWh) * (6h / day) * (30 days / 1 month) * (4 months / year) * ( 1 dollar / 100 cents) = $98 / year
If you don’t like doing the math, there are plenty of sites you can use to calculate the yearly running costs of your unit.
Aside from purchasing units with a high EER, there are several other things you can try to lower your unit’s running costs. Quality air conditioners often come with energy saver mode, which increases efficiency and improves user experience.
Energy saver mode ensures that the unit only runs if the room temperature rises above the set temperature. This further reduces energy consumption and overall noise, allowing you to sleep comfortably without getting too cold.