Finding a quiet window mounted air conditioner can be a challenge. Mainly since the noisy components, the compressor and fan, are located directly inside the packaged unit.
Since the compressor is located in the unit and not outside away from the home some degree of noise will always be present.
With that said there are some window air conditioners that have less noisy compressors than others.
The best way to judge how noisy a window air conditioners will be is to read real reviews from real people online.
Keep in mind to get a truly quiet unit there are other ways that are affordable such as mini split systems which separate the compressor outside and then feed lines into a home that circulates refrigerant to a blower motor. Split systems require more effort and skill to set up but are not as expensive as traditional central air conditioning systems used in homes.
Here are the top units we found that make the least amount of noise with links to Amazon to read the reviews yourself.
LG 8,000 BTU 115V Window-Mounted AIR Conditioner with Remote Control
LG makes many good window A/C units including the 8,000 BTU LW8016ER.
While it may not be the quietest on our list when mounted correctly it operates much quieter when compared to many other units.
One of the things that make it have less noise is it has a rotary compressor which is quieter and economical to operate.
It is 115 Volt unit that is rated to cool 340 square feet of space.
When it comes to price, along with a well built unit that is much quieter when compared to many other models the LG LW8016ER is worth a look.
Haier ESAQ406P Serenity Series 6050 BTU 115V Window Air Conditioner with LED Remote Control
Haier is known for making quiet heating and cooling units.
This unit is a 6050 BTU, 115 Volt unit and uses what is called Cross Flow technology to keep the fan noise level down.
The Haier company also wraps the compressor in a noise suppressant blanket that quiets it down.
The compressor on any HVAC unit often makes the most noise and can be heard kicking on and off as it cycles. Having this component wrapped goes a long way in making a unit run quieter.
The cross flow fan technology also makes the fan run smother and make less noise than conventional fans.
A window unit will always make some noise but this may be the quietest unit available currently.
Friedrich Chill CP06G10B 6000 BTU Window Air Conditioner
Friedrich Chill also makes many good units including the model CP06G10B.
It comes with a nice remote control that makes it easy to change the setting from a distance.
The unit has 3 cooling speeds, 3 fan speeds, auto-cool, energy saver mode and programmable 24-hour on/off timer.
The 6,000 BTU unit is rated to cool a space roughly 250 square feet depending how hot it is, and how well insulated the room is.
When set to high cooling it does make noise and works best at lower settings for a more quieter unit.
While not the quietest when comparing price vs. overall build then it may be the best option for a budget minded person looking for a good unit.
Frigidaire 25,000 BTU 230V Window-Mounted Heavy-Duty Air Conditioner with Temperature Sensing Remote Control
The Frigidaire FFRE2533S2 is a quiet A/C unit. One of the reasons why is its a 220 Volt unit which allows the compressor to run more efficiently.
220 Volts is not common in every room and are mainly used for a electric dryers and electric water heaters. Running a 220 Volt outlet to a room is not difficult but if this is a problem than it will be better to look at other units that use the standard 115 Volts.
Keystone KSTAW05B Energy Star 5,000 BTU Window-Mounted Air Conditioner with “Follow Me” LCD Remote Control, 115-volt
The Keystone Window Air Conditioner unit is a 5000 BTU, 115 Volt unit. It has a three speed fan which can be turned to low for the quietest setting.
It has a rated indoor noise Level of High at 55 dBA, Medium 52 dBA, and Low at 49 dBA.
One of the reasons it is quieter is its a smaller unit able to cool a space up-to 150 square feet.
The small size and package gives it a lower cost but also less cooling power that may be needed in a large room.
While this A/C unit may not be the quietest on the list it is a popular window A/C package that makes less noise than many others.
Window A/C units are not usually built to be the quietest since they are budget oriented equipment meant to fill a gap in a cooling system.
Doing basic maintenance on a unit can go a long way in helping it stay running the best it possibly can.
Basic care can also improve the life span of a unit which normally is up-to five years.
Things such as cleaning the air filter and keeping the outside air fins clean of debris can also make a unit run more smoother.
How well a unit is installed can also make a impact on noise level. Read here for some tips on how to help quiet down a noisy window air conditioning unit.
As always be sure to read the reviews on Amazon or elsewhere to be sure a unit is a good fit for you.