Top 5 Eco-Friendly Quietest Window Air Conditioners

I have scoured the internet and put together a list of the top 5 eco-friendly Quietest Window Air Conditioner

Before we talk about AC units, let’s talk about why you need an eco-friendly one. We all like staying cool in summer, but it shouldn’t hurt the planet.

So, it’s important to get an eco-friendly AC. It helps you protect the environment and save money on your energy bill.

who wants a loud and obnoxious AC unit ruining their peace? That’s why I’ve made sure to include only the quietest AC units on my list.

Now, let’s dive into the top 5 eco-friendly quiet window AC units. These products not only provide excellent cooling but also have impressive eco-friendly features. they won’t be loud and bother your sleep at night.

Let’s start right away!

Importance of having a quiet AC unit

Better sleep: a quiet AC makes your sleep better. This can help you feel good and stay healthy.

Improved focus: If you work from home or have kids studying, a quiet AC unit won’t distract or disturb them while they are working or studying.

Reduced stress: Constant loud noise can increase stress levels, and a quiet AC unit can help reduce stress.

Enhanced comfort: A quiet AC unit creates a more comfortable environment, as you won’t have to deal with a constant loud noise.

Better communication: A quiet AC unit won’t interfere with conversations or phone calls, making communication easier.

Respectful to neighbors: A quiet AC unit is also respectful to your neighbours, as they won’t have to listen to loud noise coming from your home.

Improved energy efficiency: Some AC units that are quiet can also help you save money on your electricity bill and help the environment by using less energy.

How Do Window ACs Work?

Window air conditioners work by drawing in hot air from a room and cooling it down using a refrigeration cycle.

The hot air is pulled into the unit through a vent and passed over a set of cold evaporator coils filled with refrigerant gas, typically freon.

Refrigerant takes heat from the air, turning it into a cold liquid.

The air conditioner makes the air cold and sends it back out into the room using the fan. The hot air is sent outside where it goes over the hot coils.

The hot air from the refrigerant goes outside, and the refrigerant turns back into a gas.

This cycle repeats itself continuously until the desired temperature in the room is reached.

Window air conditioners have a special button that allows you to make the room cooler or warmer and to change how fast the air comes out.

This makes it easy to make the air cooler or warmer, depending on your preference.

An illustration showing the components of a window air conditioning unit, including the compressor, evaporator, condenser, and fan, and how they work together to cool and circulate air in a room.
How Do Window ACs Work?

A window air conditioner has four main components:

  1. Compressor: This is the heart of the air conditioner. It compresses the refrigerant gas, which then moves through the other components.
  2. Condenser: This component cools the refrigerant gas and turns it back into a liquid. It’s located outside of the unit and expels heat to the outside air.
  3. Evaporator: This component absorbs heat from the inside air and turns the liquid refrigerant back into a gas. It’s located inside the unit and is responsible for cooling the air that is blown back into the room.
  4. Fan: The fan blows air over the evaporator and pushes the cool air back into the room. It also helps to expel hot air from the condenser to the outside.

Criteria used to choose eco-friendly quiet window AC

Energy efficiency rating

We looked for AC units with a high SEER rating (Seasonal Energy Efficiency Ratio). If the SEER rating is high, then the AC unit is more energy-efficient. This helps save energy and money on electricity bills.

Noise level

We selected units with a low decibel rating, so you won’t be disturbed by a loud buzzing noise when the AC is on.

Eco-friendly features

We looked for units with eco-friendly features like using a refrigerant that does not harm the ozone layer and ones with recyclable components.

How many decibels is a quiet air conditioner?

A quiet window air conditioner should make a noise below 52 dB. Normal levels for a window AC are between 50dB and 56dB, which is still quiet.

If the noise level is below 46dB, it is a very quiet unit. Our list’s quietest window air conditioner is 40dB, but some expensive models can be as low as 30 dB.

40dB is as quiet as a library, so it’s probably quiet enough for most people.

Top 5 Eco-Friendly Quietest Window Air Conditioners

An eco-friendly option for cooling your space - quiet window air conditioners that are energy efficient and good for the environment.

1. Midea 12,000 BTU U-Shaped Smart Inverter Window AC – top pick

Introducing the Midea 12,000 BTU U-Shaped Smart Inverter Window Air Conditioner, the perfect cooling solution for rooms up to 550 square feet.

With its smart inverter technology and 35% energy savings, this unit is not only efficient but also eco-friendly.

The ultra-quiet operation ensures a peaceful environment, while the open window flexibility allows for easy installation in any room.

The Midea 12,000 BTU U-Shaped Smart Inverter Window Air Conditioner can also be controlled with voice commands through Alexa or Google Assistant, or with the included remote control.

Enjoy the comfort of cool air without breaking the bank with the Midea 12,000 BTU U-Shaped Smart Inverter Window Air Conditioner.


PRODUCT NAMEMidea 12,000 BTU U-Shaped Smart Inverter Window Air Conditioner
ROOM SIZECools up to 550 Sq. Ft.
AIRFLOW DIRECTION8-way directional airflow
NOISE LEVELUltra-quiet
ENERGY SAVINGS35% energy savings
WORKS WITHAlexa/Google Assistant
SPECIAL FEATURESOpen Window Flexibility
DIMENSIONS (W x H x D)19.8 x 13.3 x 24.7 inches
WEIGHT72.8 pounds
WARRANTY1 year on parts and labour, 5 years on compressor

pros and cons

Cools up to 550 sq. ft. effectivelyRequires a window for installation
Smart inverter technology saves up to 35% of energyMay be too expensive for some budgets
Works with Alexa/Google Assistant for convenient voice controlMay not be compatible with older home automation systems
Ultra-quiet operation for a more comfortable environmentSome users may find the installation process challenging
Open window flexibility allows for fresh air circulationNot suitable for large spaces or commercial use
Comes with remote control for added convenienceIt may produce excessive condensation in very humid environments

2. Windmill Air Conditioner: App and Voice-Enabled – 8,300 BTU

Introducing the Windmill Air Conditioner – the perfect addition to your smart home!

With its easy installation process, you’ll be feeling the cool air in no time.

No more noisy AC units interrupting your peace.

This Energy Star efficient unit is designed with side insulation to prevent any unwanted hot air from entering your home, keeping you cool and comfortable all day long.

Plus, the auto-dimming LED display ensures that the unit won’t keep you up at night.

With the app and voice-enabled features, controlling the Windmill Air Conditioner has never been easier. You can adjust the temperature from your phone or even with your voice using Amazon Alexa or Google Assistant.

The Windmill Air Conditioner packs a powerful punch with 8,300 BTUs, making it suitable for rooms up to 350 square feet.

Say goodbye to sweating in the summer and hello to a comfortable and cool home with the Windmill Air Conditioner.


Capacity19.4 Liters
Special FeaturePortable, Energy Efficient, LED Display
Product Dimensions19.3″D x 19.4″W x 13.2″H
Energy Star5 Star
Number of Speeds3
Floor Area350 Square Feet
Pre-AssemblyNo pre-assembly with easy install kit included
Quiet OperationQuiet AC with auto-dimming LED display
Efficient CoolingTop vents for better airflow, eco-friendly refrigerant (R32)
App and Voice ControlWi-Fi and app-enabled for iPhone and Android, voice-enabled
Expertise60 years of AC expertise for a quality unit with modern features

pros and cons

Pre-assembled installation kitCan only cool up to 350 square feet
Quiet operationOnly has 3 speeds
Energy Star CertifiedRequires a power outlet
Auto-dimming LED displayOnly available in white colour
Uses refrigerant with less global warming potentialMore expensive than some other window AC units
Wi-Fi and app-enabled for remote control
Experienced AC manufacturer

3. LG Mounted 8,000 BTU Window Air Conditioner

Introducing the LG Mounted 8,000 BTU Window Air Conditioner, designed to cool rooms up to 350 square feet, which is equivalent to a 14′ x 25′ room size.

This window air conditioner operates quietly, ensuring you are not disturbed by any unnecessary noise. The electronic control with a remote makes it easy to use from the comfort of your couch or bed.

With three cooling and fan speeds, this unit is customizable to meet your desired temperature needs.

It is also Energy Star rated, which means you can enjoy a comfortable cool atmosphere without worrying about energy bills.

Plus, the auto-restart feature ensures that your unit automatically restarts to your previous settings after a power outage.

This window air conditioner is powered by 115V and comes in a sleek white design, blending well with any interior decor.

Say goodbye to hot and stuffy rooms with the LG Mounted 8,000 BTU Window Air Conditioner.


Capacity2.2 Pints
Cooling Power8000 BTU
Special FeatureRemote Control
Product Dimensions19.4″D x 19.6″W x 12.4″H
Energy StarYes
Start Year2016
Voltage115 Volts
Noise PerformanceAs low as 53dB in low mode for quiet operation
Energy EfficiencyEnergy Star certified for energy-saving operation
Fan Speeds3 cooling and fan speeds with an auto-cool feature
UsabilityEasy-to-use electronic controls with remote
Room SizeCools rooms up to 350 sq. ft. (14′ x 25′ room size)

pros and cons

Low noise performanceCooling capacity may not be enough for larger rooms
Energy Star certifiedMay require professional installation
Multiple fan speedsNo built-in air purifier or filter
Easy to use electronic controls with remoteMay not have advanced features such as WiFi connectivity
Cools rooms up to 350 square feetOnly available in white colour
Seasonal Energy Efficiency Ratio (SEER) of 13May not be suitable for extreme climates or high-humidity areas
Compact size at 19.4″D x 19.6″W x 12.4″HNo heating function included

4. LG 9,500 BTU Dual Inverter Smart Window Air Conditioner

Introducing the LG 9,500 BTU Dual Inverter Smart Window Air Conditioner!

This ENERGY STAR-certified unit is perfect for keeping your room cool and comfortable, without causing any disturbance. This air conditioner is very quiet. You won’t even hear it!

Not only is it quiet, but it’s also smart. The LG ThinQ app allows you to control your AC unit from anywhere using your smartphone. Plus, it works with Amazon Alexa and Hey Google, so you can control it with voice commands too!

This window air conditioner is designed with a dual inverter compressor, which means it cools faster, lasts longer, and runs quieter than other AC units.

This window air conditioner makes rooms feel cooler by using something called BTUs. It can make a room that’s as big as a classroom or a big living room feel nice and cool!

This cool machine can help you feel good in different places, like your bedroom, living room, or even a little office. It will help you feel comfortable all day long!

This Smart Window Air Conditioner is easy to install and comes with a washable and reusable air filter.

This special air conditioner can also help you save money on your electricity bill by using less energy. With its sleek and modern design, this AC unit will fit perfectly in any room.

Upgrade to this smart and quiet AC unit for a more comfortable and convenient summer!


Capacity4.5 Pints
Cooling Power9500 British Thermal Units
Special FeatureWi-Fi Control
Product Dimensions19.6″D x 24.5″W x 12.5″H
Energy Star1 Star
Seasonal Energy Efficiency Ratio(SEER)13.8
Voltage115 Volts
Sound Level58 dB

pros and cons

Can cool a large room up to 450 sq. ft.The sound level is 58 dB which is not as so quiet as some other models, but good for a big room
Inverter technology makes it highly efficientEnergy Star rating is only 1 star
Wi-Fi control allows for easy remote accessHigher price point compared to some other models
The auto Restart feature turns the unit back on after a power lossOnly available in white colour
Works with LG ThinQ, Amazon Alexa and Hey Google for added convenienceCooling capacity may be too high for smaller rooms

5. Whirlpool 12,000 BTU Through-The-Wall Air Conditioner

Introducing the Whirlpool WHAT121-1AW Energy Star 12,000 BTU Through-The-Wall Air Conditioner – the perfect solution for cooling rooms up to 550 square feet.

You can easily set your preferred temperature with the help of the digital display and remote control.

By utilizing the 24-hour timer, you can set specific times for the unit to turn on and off, resulting in energy and cost savings.

This air conditioner has a cooling power of 12,000 BTUs, ensuring efficient and strong cooling while still being energy efficient and meeting the Energy Star standards.

Installation is a breeze with this through-the-wall unit, and its sleek white design will blend seamlessly with any room decor.

Experience ultimate comfort with the Whirlpool WHAT121-1AW Energy Star 12,000 BTU Through-The-Wall Air Conditioner.


Cooling CapacityEnergy Star-rated 12,000 BTU for rooms up to 550 sq. ft
Cooling Flexibility8-way directional louvres, 3 fan speeds, 4 operation modes
Temperature RangeTemperature setting range of 62-86 degrees
On-board ControlsElectronic controls with remote control and 24-hour timer
Universal Fit SizeFits sleeves 24.5”-27” wide with dimensions of 20.3” D x 24.2” W x 14.5” H
Eco and Sleep FunctionEnergy-saving Eco Function and Sleep Function modes
Easy Remove FilterQuick-access filter for easy cleaning

pros and cons

Exceptional cooling for rooms up to 550 sq. ft.only suitable for window installation
Cooling flexibility with 8-way directional louvres, 3 fan speeds, 4 operation modes, and a temperature range of 62-86 degrees
Easy customization with on-board electronic controls, remote control, and programmable 24-hour timer
Universal fit size and comes with a trim kit and rear grille to finish off the look
Eco and Sleep Function helps save money on energy bills
Easily remove the filter for easy cleaning

Should I Consider a Portable AC Over a Window AC?

Portable AC vs Window AC: Which one should you choose?

On a hot day, you may consider purchasing an air conditioner to help you stay cool.

There are two types of air conditioners: window ACs and portable ACs.

Window ACs are big boxes that you put in a window.

They can cool a whole room well, but they can be hard to install and they can’t be moved easily.

Portable ACs are smaller and can be moved from room to room.

They work by blowing cool air into the room and sucking warm air out through a tube that goes out a window.

Although they can make a bit more noise than window ACs, portable ACs are simpler to set up and can be used in multiple rooms.

So, if you want to cool just one room well and don’t need to move the AC around, a window AC might be better for you.

how to soundproof window AC

If your window AC is too noisy and you can’t buy a new, quieter one, there are some things you can do to make it less loud.


First, check the location of the AC unit.

If it’s close to a wall or other hard surface, it may be bouncing sound waves back into the room.

Try moving the unit away from any walls or hard surfaces to see if this makes a difference in the noise level.

Regular maintenance

It’s important to regularly clean and maintain your AC unit to keep it working properly.

Dirt and debris can build up on the fan blades and cause excess noise.

Clean the filter regularly and schedule professional maintenance as needed.


Use foam weatherstripping tape to seal any gaps between the AC and the window frame.

This can help reduce noise from outside.

Soundproof curtains

Install soundproof curtains or blinds over the window to help absorb sound waves and reduce noise from outside.

Soundproofing box

Make a DIY soundproof box by building a wooden frame around the AC and lining it with soundproof insulation.

This can help reduce the noise the AC makes.

Floor mat

Place a sound-absorbing mat or rug on the floor near the AC to help absorb any sound waves that bounce off hard surfaces.


If the noise level of your AC persists even after trying the above steps, you might want to think about getting a new AC unit that is designed to operate quietly.

FAQs: eco-friendly Quietest Window Air Conditioner

here are some question that helps to choose the best AC for home or office.

What makes a window air conditioner quiet?

A window air conditioner can be quiet if it has features such as insulated cabinets, vibration dampeners, and a variable-speed compressor. Additionally, a unit with a low decibel rating can be considered quiet.

How do I know if a window air conditioner is quiet?

Look for the unit’s decibel (dB) rating. The lower the number, the quieter the unit will be. Typically, a window air conditioner with a rating below 50 dB is considered quiet.

Can a quiet window air conditioner cool a large room?

Yes, a quiet window air conditioner can cool a large room, but it is important to choose a unit with an appropriate cooling capacity.

Are eco-friendly window air conditioners quiet?

Yes, eco-friendly window air conditioners can be quiet. In fact, some of the most efficient and eco-friendly models are designed to operate quietly.

How do I maintain a quiet window air conditioner?

Regular maintenance is key to keeping a window air conditioner running quietly. Clean or replace the air filter regularly, keep the unit free from debris, and ensure it is installed properly to reduce vibrations and noise.


I hope our information is best for your need, we analyze the top eco-friendly Quietest Window Air Conditioners in this guide.

My favourite air conditioner is the Midea 12,000 BTU one that goes in a window this is our top lick also. It’s special because it has a U shape and works well. It has lots of cool things it can do too! But, if you need something cheaper or stronger, there are other choices too.

Tell me what you think is most important when picking a quiet air conditioner in the comments!

About Author

this is john Andrew from Australia, I am an architect I have worked for the home improvement company Bunnings. I am a home improvement specialist as well as a part-time blogger. Where I will keep giving you tips on soundproofing, you follow our blog.

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