Quietest Window Air Conditioner – Buyer’s Guide

Window air conditioners are a perfect way to cool a single room without spending a fortune on central air conditioning. But not all window air conditioners are created equal – some are much louder than others. If you’re looking for the quietest window air conditioner, we’ve got you covered! We’ve rounded up the quietest window air conditioners on the market, so you can stay cool and comfortable without being disturbed by noise.

Benefits of the Quietest Window Air Conditioner

First, let’s quickly go over some of the benefits of using a window air conditioner.

  • Cool individual rooms. With central air conditioning, you have to cool the whole home. The rest of your house will become hotter during hot months while cooling other areas that are unnecessary for sleeping or other tasks. Window units are very helpful in these situations. When you need to cool only your bedroom, kitchen, or office – window units are perfect!
  • Quiet window air conditioners are especially great for shutting out noise from outside if you live in a particularly noisy area.
  • They also save money on energy costs compared to central AC systems. Window units simply pull hot air into the unit and push out cool air into the room, so they don’t require any ducts or vents.
  • They can also be easily installed in an existing window without replacing the whole unit.

Why Are the Window Air Conditioner Loud?

Window air conditioners tend to be louder compared to other types of AC units. The reason for this is that they require that the unit be placed in an open window, rather than built into a wall or ceiling. This can cause problems with airflow and pressure inside the room.

The fan speed setting on your air conditioner is going to make a large difference in the noise levels. If you have your unit set to a lower fan speed, it will be much quieter than if your AC is on high. Some higher-end models also offer an enhanced “white noise” feature that helps block out outside sounds.

Video: How the Window Air Conditioner Works

How to Reduce the Noise Level of Your Window Air Conditioner

If you find that your window air conditioner is too loud, there are a few steps you can take to reduce noise.

  • Some units feature an enhanced “white noise” option that creates a low hum to block out outside sounds.
  • Placing the unit in a corner of the room facing outward toward a wall may help decrease noise.
  • Place a rug or carpet in front of the unit to dampen vibrations.
  • Close the curtains on the window so that the sound of rushing air isn’t as loud.

To find which of our quietest window ACs will suit your needs, you can browse our full line of window air conditioners. You can also read our full-length reviews of some popular models later!

Quietest Window Air Conditioner: FAQs

How can I tell if there is something wrong with my air conditioner?

It could mean that your AC isn’t working correctly, but it also might just be a symptom of the unit is too loud. If you find that your window air conditioner is blowing hot air instead of cold, or not cooling your room to an adequate temperature, then it might be time to replace it.
ACs can also have loose or disconnected wires, which are easy to fix on your own with a little knowledge of basic electrical systems. If you notice that your AC is making an excessive amount of noise – check all parts for potential problems, as well as the fan speed. The higher speed settings tend to be noisier, so keep that in mind if you have a choice.

How long should I run my air conditioning?

The amount of time you need to run your unit can vary depending on the season and your area’s climate. In general, keeping the air conditioner running for several hours at a time is sufficient. In hot months, it’s best to keep your AC running for as long as possible at night, so you can sleep comfortably. Once temperatures start to cool down in fall and winter, you can run your AC less frequently.

What is the difference between a Window Air Conditioner and an Attic Fan?

Window air conditioners are built with specific features to be used in open windows. Attic fans, however, are designed to exhaust hot air out of the attic space and should not be used outside for obvious reasons.
Window air conditioners are built for specific areas – bedrooms, kitchens, etc. Attic fans often pull in colder air than what is outside your window, which can create an uncomfortable draft.

Will I lose my home’s heat and cool air if my window is open?

Yes, you will! When your AC unit is in an open window, the warm air inside of your home will be pulled out and replaced with cooler air from outside. If you close your windows, shut off the air conditioner, and turn on your heat, you can use both your heater and air conditioner at the same time.

If I put my AC in the window, will it keep out the rain?

No. Even if you cover your unit with a rain shield when putting it in the open window, water may still be able to get into ports on top of or below the unit.
It is best to keep the AC in a closed room with an open window or suspend it from the wall with no window underneath. If you do use your AC outside of the window, make sure that water cannot drip into ports at the top or bottom of the unit.

Quietest Window Air Conditioner: Comparison Table & Major Options

Full Window View
Safe & Efficient
Maximum Usability
Easy-to-Clean
38-49 dB
42-49 dB
46-52 dB
51-58 dB
Exclusive design combines the benefits of a portable ac, window ac and mini-split ac into a simple format. Electronic controls and LCD remote control.
3-in-1: This is not only an Air Conditioner, but also comes with modes for fan-only and for dehumidifying. Energy-Star rated, making them better for the environment and your wallet.
After a power failure, auto restart will automatically turn the unit back on when power is restored. Energy Saver function.
ENERGY STAR® Certified. Multi-Speed Fan. Sleep Mode. Programmable 24-Hour On/Off Timer. Effortless™ Remote Temperature Control.
Full Window View
38-49 dB
Exclusive design combines the benefits of a portable ac, window ac and mini-split ac into a simple format. Electronic controls and LCD remote control.
Safe & Efficient
42-49 dB
3-in-1: This is not only an Air Conditioner, but also comes with modes for fan-only and for dehumidifying. Energy-Star rated, making them better for the environment and your wallet.
Maximum Usability
46-52 dB
After a power failure, auto restart will automatically turn the unit back on when power is restored. Energy Saver function.
Easy-to-Clean
51-58 dB
ENERGY STAR® Certified. Multi-Speed Fan. Sleep Mode. Programmable 24-Hour On/Off Timer. Effortless™ Remote Temperature Control.

Main Features to Look for in the Quietest Window Air Conditioner

Here are some features to look into before buying a quiet window air conditioner:

1. Noise Level Before you buy a unit, check the noise level of each air conditioner. The decibel rating will tell you how loud or quiet a window AC is. Keep in mind that when an AC is running on full blast, it can be louder than normal volume levels in your home.
2. EER Rating The Energy Efficiency Ratio (EER) is a rating that tells you how efficient your window AC unit will be. Most quiet window air conditioners have an EER of anywhere from 9-13, but it’s important to look at the room size needed for your unit before purchasing one.
  • EER rating below 8: Energy inefficient
  • EER rating between 8 and 10: Average inefficiency
  • EER rating above 10: Very energy efficient
3. Cooling Capacity (BTU/h) Before buying a window AC unit, you’ll need to make sure that it has enough power to cool your room. The BTUs (British Thermal Unit) for your unit will tell you how high the air conditioner can reach in terms of cooling ability.
  • For small rooms (up to 150 square feet) , look for an AC unit with 6,000 BTU/h cooling capacity.
  • For medium rooms (up to 250 square feet), look for 8,000 BTU/h units.
  • For larger rooms or two-floor homes (over 350 square feet) , 10,000 BTU/h units are best.
4. Airflow Airflow is how fast your window AC can get rid of hot air in your room. Look for units with at least 2.0 cubic feet per minute (CFM) airflow, but remember that the higher the CFM rating, the more noise you will notice when it’s on.
5. Dehumidification Dehumidification will ensure that your room stays fresh and dry when the AC is on. You may need a unit with dehumidification if you live in a humid area, but depending on the size of the room you’re cooling, it might not be necessary.
5. Timer and Remote control A timer allows you to set the unit to turn on and off at specific times. This can be handy if you want the unit to turn on before you get home from work, for example. Remote control lets you adjust the settings from anywhere in the room. This is handy if the unit is not within easy reach.

1. Soleus Air Exclusive 8,000 BTU Window Sill Air Conditioner – Full Window View

1,317 Reviews
Soleus Air Exclusive 8,000 BTU Energy Star First Ever Over The Window Sill Air Conditioner Revolutionary Safety Class and Whisper Quiet, Keep a Clear View Through Your Window, With WiFi, Google Home, and Alexa (Fits up to 11" Wide Window Sill)
  • Exclusive design combines the benefits of a portable ac, window ac and mini-split ac into a simple format
  • Simply slide the saddle air conditioner over the window sill for a safe installation without any tools required or risks of the air conditioner falling out...
  • Connect to WiFi to use control the Hybrid AC from your phone or connect to Alexa or Google Home. Activate the MyTemp sensor on the remote control and relax...

Soleus Air Exclusive Specifications

Product Dimensions 28.9 x 18.7 x 15 inches
Item Weight 71.3 pounds
Cooling BTU’s 8,000
Cooling Area 375 sq. ft.
Special Features WiFi, Google Home, Alexa Compatible, Energy Saver, Sleep, and Dry Mode, My Temp Remote
Multi-Function 3-IN-1: Air Conditioner, Dehumidifier & Fan
Noise Level (db) 38/49
Pints Per Day 34
Fan Speeds 3
Window Sill Clearance Up to 11″ Clearance
The Soleus Air Exclusive 8,000 BTU Window Sill Air Conditioner (official website) is the perfect solution for cooling off in those hot summer months. This saddle air conditioner slides over the window sill for a safe installation, without any tools required or risks of the air conditioner falling out of the window. Plus, it fits windows 24″ to 48″ wide with a minimum height clearance of 16″. So your room will be nice and cool in no time at all.

Wifi Control

The Soleus Air Exclusive 8,000 BTU Window Sill Air Conditioner is perfect for cooling down a single room. Being able to connect to WiFi and control it with your phone or voice assistant is super convenient, and the energy-saving features are a bonus. Plus, it’s got an automatic restart after a power interruption so you don’t have to worry about losing your cool!

Great Design

You can get the cooling power you need without sacrificing your view! The Soleus Air Exclusive 8,000 BTU Window Sill Air Conditioner is perfect for keeping any room in your home cool and comfortable. Plus, it’s easy to install – just plug it into an open window and enjoy the refreshing breeze!

Overall

The Soleus Air Exclusive 8,000 BTU Window Sill Air Conditioner is a great choice for those looking to keep their room cool and comfortable. It’s got a sleek design and easy installation, and it’s wifi-capable so you can control it with your phone! Check price at Walmart.com, Homedepot.com, Lowes.com.

Video: Soleus Air Exclusive – Worlds First Over-The-Sill Air Conditioner – Ultra Quiet and Keep Your View

2. TOSOT 8,000 BTU Window Air Conditioner Full Window View – Safe & Efficient

2,549 Reviews
TOSOT 8,000 BTU Air Conditioner Cools up to 350 sq. ft. Quiet, LED, Smart Remote Control, Energy Efficient Window AC, 8000, White
  • QUICK COOLING: Give your hot room the cold shoulder. TOSOT 8,000 BTU Window Air conditioners are best for spaces up to 350 sq. ft. If your space has high...
  • MODERN DESIGN: This ain't your grannie's Window AC. Gone are the eyesores of yesterday, with their ugly metal grilles messing up the flow of your interior...
  • 1 PRODUCT, 3 USES: At TOSOT, we want our products to solve as many of your problems as possible. That's why we're giving you three products for the price...

TOSOT Specifications

Product Dimensions 21 x 17.2 x 12.8 inches
Item Weight 52.9 pounds
Cooling BTU’s 8,000
Cooling Area 350 sq. ft.
Dehumidifying Capacity 1.9 Pint/h (0.9 L/h)
Recommended Window Width (inches) 26-41
Recommended Window Height (inches) 19
Noise Level (db) 54-59 dB
Power Cord 6 Ft (1.8 m)
Remote Control Yes
Safe and Efficient Energy-Star rated
The TOSOT 8,000 BTU Window Air Conditioner (official website) is perfect for cooling your room off from those hot summer days! This air conditioner has a cross-ventilation feature that circulates the cool air all around the room. It’s got an energy saver mode so you can save on electricity bills, and an ECO setting to make it even more efficient.

Quick Cooling

This window air conditioner is perfect for quickly cooling down a small to medium-sized space. It has an 8,000 BTU capacity and operates at 42-49 dB, making it ideal for use in bedrooms, nurseries, and home offices. Plus, it features a Quick Cooling mode that will rapidly cool the room to your desired temperature.

Smart Temperature Control

With SMART TEMPERATURE CONTROL, this AC unit will keep your space cool based on the temperature around your remote control. Plus, it’s whisper-quiet, so you can relax and cool down without any noise interference.

Overall

The TOSOT 8,000 BTU Window Air Conditioner is ideal for cooling off your bedroom, nursery, or study. It’s got a smart temperature control feature and an energy-saving ECO setting so you can save on electricity bills. Plus, it’s got a sleek design and remote control! Check price at Walmart.com, Homedepot.com.

Video: Tosot Window Air Conditioner Installation

3. Haier ESAQ406T 22″ Window Air Conditioner – Ultra-Quiet Operation

Sale
357 Reviews
Haier ESAQ406T Serenity Series 6, 000 BTU 115V Window Air Conditioner with Ultra Quiet Sound Package
  • 2016 energy star: 12.2 efficiency Ratio (EER)
  • 6, 000 BTU room air conditioner for window-mounted installation (Min/Max Window Width: 26.07/39.25 inches; Min Window Height: 13.38 inches)
  • 4 functions include cool, energy save, fan and Dehumidify

Haier ESAQ406T Specifications

Product Dimensions 18.13 x 21.25 x 12.44 inches
Item Weight 55.6 pounds
Cooling BTU’s 6,000
Cooling Area 250 sq. ft.
Power Source Corded Electric
Special Feature Dust Filter
Seasonal Energy Efficiency Ratio (SEER) 12
Noise Level (db) 44 dB
Air Flow Efficiency 250 Cubic Feet Per Minute Per Watt
Min/Max Window Width 26.07/39.25 inches
Min Window Height 13.38 inches


The Haier ESAQ406T 22″ Window Air Conditioner (official website) is perfect for cooling your room off from those hot summer days! This eco-friendly unit features a temperature control function, so you can choose how cool you want the room to be. Plus, it has an electronic protection feature that will automatically shut down the unit in case of power interruption or failure.

Quiet Operation

This window air conditioner is perfect for quickly cooling down a small to medium-sized space. It has a 22″ capacity and operates at 44-49 dBA, making it ideal for use in bedrooms, nurseries, and home offices. Plus, it features an automatic restart after power interruption so you don’t have to worry about losing your cool!

Energy Saving

With an energy-saving design, this AC unit will save on electricity bills. It’s got a temperature control function so you can choose how cold the room is, and an ECO setting to make it even more efficient. Plus, it comes with remote control for easy operation!

Overall

The Haier ESAQ406T 22″ Window Air Conditioner is ideal for cooling off your bedroom, nursery, or study. It’s got a temperature control function and an energy-saving ECO setting so you can save on electricity bills. Plus, it’s got a sleek design and remote control! Check price at Walmart.com, Homedepot.com, Appliancesconnection.com.

Video: Haier ESAQ406T 22″ Window Air Conditioner Serenity Series with 6,000 BTU Review

4. Emerson Quiet Kool Electronic Window Air Conditioner – Intelligent Sleep Mode

72 Reviews
Emerson Quiet Kool 5,000 BTU Window Air Conditoner with Remote Control | 3-in-1 AC, Fan, Dehumidifer | for Rooms up to 150 Sq.Ft. | 24H Timer | Eco Mode | EARC5RD1H, 5000, White
  • QUIET COOLING: This 5,000 BTU window air conditioner efficiently cools up to 150 sq. ft. At 52dB, this unit is among the quietest in the industry, making...
  • SMART-FIT SIZING: With dimensions of 16” W x 12” H, this Emerson Quiet Kool window air conditioner was designed with Smart-Fit dimensions, meaning it...
  • PROGRAMMABLE TIMER AND SLEEP MODE: Integrated 24-hour timer can be set via on-board controls or remote control. Intelligent sleep mode takes it one step...

Emerson Quiet Kool Specifications

Product Dimensions 13.1 x 16 x 11.8 inches
Item Weight 35 Pounds
Cooling BTU’s 5,000
Cooling Area 150 sq. ft.
Controller Type Remote Control
Refrigerant R32
Self Timer Duration 24 Hours
Noise Level (db) 55 dB
Power Source Type Corded Electric
Voltage 115 volts
Wattage 451 watts
Warranty Description 1 year labor, 2 years parts and 5 years compressor
The Emerson Quiet Kool Electronic Window Air Conditioner (official website) is perfect for cooling your room off from those hot summer days! This air conditioner has an electronic control panel that’s easy to use. It also features a digital temperature display, making it ideal for setting the room’s desired temperature precisely.

Precise Temperature Control

This window air conditioner is perfect for quickly cooling down a small to medium-sized space. It has a 12,000 BTU capacity and operates at 46-52 dB, making it ideal for use in bedrooms, nurseries, and home offices. Plus, it features an energy saver mode that will reduce power consumption by up to 20%!

Efficient Performance

With an efficient performance, the Emerson Quiet Kool Electronic Air Conditioner will save on electricity bills. It’s got a precise temperature control function so you can choose how cold the room is, and an energy saver mode that reduces power consumption by up to 20%. Plus, it automatically shuts off when the desired temperature has been reached or if the unit detects a change in the room’s temperature.

Overall

The Emerson Quiet Kool Electronic Window Air Conditioner is perfect for cooling off your bedroom, nursery, or study. It’s got an electronic control panel and a digital temperature display for precise operation. Plus, it comes with energy-saving features to help you save on electricity bills. Check price at Walmart.com, Homedepot.com, Lowes.com.

Video: Emerson Quiet Kool Window AC Overview & Installation

5. LG 6,000 BTU 115V Window Air Conditioner – Maximum Usability

Sale
4,272 Reviews
LG 6,000 BTU Window Conditioner, Cools 250 Sq.Ft. (10' x 25' Room Size), Quiet Operation, Electronic Control with Remote, 2 Cooling & Fan Speeds, 2-Way Air Deflection, Auto Restart, 115V, 6000, White
  • LOW NOISE PERFORMANCE: Operates at sound levels as low as 52dB (in low mode) eliminating unnecessary noise.
  • MULTIPLE FAN SPEEDS: 3 cooling and fan speeds allow you to customize your cooling.
  • MAXIMUM USABILITY: Easy to use electronic controls with remote

LG 6,000 BTU Specifications

Product Dimensions 14.38 x 17.31 x 11.13 inches
Item Weight 39.6 pounds
Cooling BTU’s 6,000
Cooling Area 260 sq. ft.
Controller Type Remote Control
Special Feature Dust Filter
Seasonal Energy Efficiency Ratio (SEER) 12
Noise Level (db) 52 dB
Power Source Type Corded Electric
Voltage 115 volts
Features 3 cooling speeds, 3 fan speeds, 24-hour on/off timer and an Energy Saver function
Warranty Description 1 year parts and labor
The LG LW6100ER 6,000 BTU Window Air Conditioner (official website) is perfect for cooling off that hot summer space! This energy-saving unit features a temperature control function and an auto on/off timer so you can save on electricity bills. Plus, it comes with remote control for easy operation!

Low Noise Performance

This AC operates at sound levels as low as 52dB (in low mode), making it perfect if you want to keep cool without disturbing your peace and quiet. Plus, with its Energy Star certification, you can rest assured that this machine is both efficient and environmentally friendly.

Maximum Usability

The LG LW6100ER Window Air Conditioner is ideal for quickly cooling down a small to medium-sized space. It has a 6,000 BTU capacity and operates at 46-52 dB, making it perfect for use in bedrooms, nurseries, home offices, or other spaces you want to keep cool during the summer! Plus, it’s got a temperature control function and an auto on/off timer so you can save on electricity bills.

Overall

The LG LW6100ER 6,000 BTU Window Air Conditioner is a sleek unit that will cool off your bedroom or office in no time! This machine has a low noise operation and comes with remote control for easy operation. Plus, it’s got energy-saving features to help you save on electricity bills! Check price at Walmart.com, Homedepot.com, Lowes.com.

Video: LG 6,000 BTU Window Air Cooler Review

6. Frigidaire Window-Mounted Room Air Conditioner – Easy-to-Clean

Sale
947 Reviews
Frigidaire FFRE123WAE Window-Mounted Room Air Conditioner, 12,000 BTU with Energy Star Certified, Multi-Speed Fan, Sleep Mode, Programmable Timer, Easy-to-Clean Washable Filter, in White
  • ENERGY STAR Certified: Use less energy than standard air conditioners reducing your energy usage, and ultimately lowering your utility bills
  • Multi-Speed Fan: Features three different fan speeds, for more cooling flexibility
  • Sleep Mode: Maximum comfort throughout the evening hours with the added benefit of energy savings. With Sleep Mode, the temperature gradually increases a...

Frigidaire Specifications

Product Dimensions 21.5 x 19 x 14.5 inches
Item Weight 67.7 pounds
Cooling BTU’s 12,000
Cooling Area 850 sq. ft.
Controller Type Remote Control
Special Feature ENERGY STAR® Certified; Multi-Speed Fan; Sleep Mode, Programmable 24-Hour On/Off Timer; Effortless™ Remote Temperature Control
Filters Easy-to-Clean Washable Filter
Noise Level (db) 51-58 dB
Power Source Type Corded Electric
Warranty Description 1 year parts and labor
The Frigidaire Window-Mounted Room Air Conditioner (official website) is perfect for cooling off your dining, living room, or kitchen! It’s got a 67 pint per day dehumidifier function that reduces humidity in the air for optimum comfort.

Minimum Noise Level

This AC operates at sound levels as low as 51 dB (in low mode), making it perfect if you want to keep cool without disturbing your peace and quiet. Plus, with its Energy Star certification, you can rest assured that this machine is both efficient and environmentally friendly.

Multi-Speed Fan

The Frigidaire Window Air Conditioner is perfect for cooling off your living space! It’s got a 52,000 BTU capacity and operates at 51-58 dB, making it perfect for use in large spaces like family rooms or bedrooms. Plus, it features a multi-speed fan with three modes – auto, cool, and fan – so you can choose how cool and quiet you need your room to be!

Overall

The Frigidaire Window-Mounted Room Air Conditioner is a sleek machine that will quickly cool down your kitchen or living space. This unit has a multi-speed fan with three modes for adjustable cooling, plus an Energy Star certification and low noise operation. Check price at Walmart.com, Homedepot.com, Abt.com.

Video: FRIGIDAIRE 12,000 BTU 115V Window-Mounted Compact Air Conditioner Review

In Conclusion

These low noise window air conditioners are great for cooling off your room and keeping the peace and quiet at the same time. They’re all Energy Star certified, so you can rest assured that they’re efficient as well! Just make sure to choose a unit with the right BTU capacity for your space. The higher it is, the more powerful it will be at cooling and dehumidifying your room!

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