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10 Best Lightweight Window Air Conditioner 2025 in the United States

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Our Top Picks

#1

Winner

GE Window Air Conditioner Unit, 5,000 BTU for Small Rooms up to 150 sq ft. with Manual Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White

Rating
9.8
Chosen by1,333
Cooling Capacity (BTUs)
Noise Level
Additional Features

Most important from
7976 reviews

Cooling Capacity (BTUs)
The unit cools small rooms effectively and maintains a comfortable temperature without being overpowering.
Noise Level
Its noise level is low enough for nighttime use, with the compressor running quietly and the fan providing a soothing white noise.
Additional Features
The black model helps block incoming light better than typical white units, making it ideal for bedrooms.

The GE 5000 BTU window air conditioner is a solid choice for small rooms up to 150 square feet like bedrooms or home offices. Its cooling power is suitable for compact spaces, providing enough refreshment without being overpowering. One strong point is its relatively low noise level at 56 dB, making it quiet enough for nighttime use without disturbing your sleep. The unit is lightweight at just under 5 pounds and has a compact size, which makes it easier to install and less bulky than heavier models. Installation is user-friendly thanks to the included EZ Mount kit designed for double-hung windows, so you likely won't need professional help.

The air conditioner offers adjustable controls with two fan speeds, two cooling modes, and 10 temperature settings, allowing flexible comfort management. The washable filter is a nice feature for easy maintenance and longer-lasting performance. On the energy side, the unit has a Seasonal Energy Efficiency Ratio (SEER) of 11, which is decent but not top-tier, so it won’t be the most energy-saving option available. It is well-rated by users and backed by a 1-year warranty, making it a reliable choice for small spaces.

If you want a straightforward, compact air conditioner that cools small spaces effectively without complicated features, this GE unit fits the bill nicely. However, it might not be ideal for rooms larger than 150 square feet or for those seeking ultra-quiet operation below 50 dB.

Rating
9.8
Chosen by1,333
Cooling Capacity (BTUs)
Noise Level
Additional Features

Most important from
7976 reviews

Cooling Capacity (BTUs)
The unit cools small rooms effectively and maintains a comfortable temperature without being overpowering.
Noise Level
Its noise level is low enough for nighttime use, with the compressor running quietly and the fan providing a soothing white noise.
Additional Features
The black model helps block incoming light better than typical white units, making it ideal for bedrooms.
#2

Frigidaire 5,000 BTU Window Air Conditioner with Remote Control, Cools Up to 150 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White

Rating
9.6
Cooling Capacity (BTUs)
Noise Level
Weight and Dimensions

Most important from
17381 reviews

Cooling Capacity (BTUs)
The Frigidaire FHWC054TE1 Window Air Conditioner is perfect for small rooms, providing excellent cooling even during heatwaves.
Noise Level
The unit operates quietly, making less noise than a pedestal fan and barely noticeable when watching videos.
Weight and Dimensions
Its lightweight nature makes installation manageable, though having an extra hand can be helpful.
Additional Features
A long power cord adds to its convenience, allowing flexible placement.

The Frigidaire FHWC054TE1 Window Air Conditioner offers a cooling capacity of 5000 BTUs, making it suitable for small spaces up to 150 square feet. One of its key strengths is the multi-speed fan, which provides three different fan speeds for flexible cooling options. This unit also includes a remote control, a filter light reminder, and a washable dust filter, adding to its convenience and ease of use.

With a noise level of 52 dB, it operates relatively quietly, which can be a significant advantage for light sleepers or those who prefer a quieter environment. The air conditioner has an Energy Efficiency Ratio (EER) of 11, which is decent but not the highest in its category. It's also important to note that it is not Energy Star rated, which might affect long-term energy savings.

Weighing 35.5 pounds and with dimensions of 14.4 x 16 x 12.2 inches, it's relatively lightweight and compact, making installation easier. The unit also comes with a window kit and two AAA batteries for the remote, making it ready to use out of the box. Some potential drawbacks include its lack of an Energy Star rating and the absence of advanced features such as smart home compatibility. This air conditioner is suitable for those looking for a straightforward, reliable cooling solution for small rooms at a reasonable price.

Rating
9.6
Cooling Capacity (BTUs)
Noise Level
Weight and Dimensions

Most important from
17381 reviews

Cooling Capacity (BTUs)
The Frigidaire FHWC054TE1 Window Air Conditioner is perfect for small rooms, providing excellent cooling even during heatwaves.
Noise Level
The unit operates quietly, making less noise than a pedestal fan and barely noticeable when watching videos.
Weight and Dimensions
Its lightweight nature makes installation manageable, though having an extra hand can be helpful.
Additional Features
A long power cord adds to its convenience, allowing flexible placement.
#3

LG LW1024RD 10,000 Window Air Conditioner, 115V, 450 Sq.Ft. (18' x 25' Room Size), Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, 10000 BTU, White

Rating
9.3
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
16897 reviews

Cooling Capacity (BTUs)
Cools quickly and effectively, often beyond the intended room size, providing reliable comfort during warm weather.
Energy Efficiency Ratio (EER)
Features like the energy saver mode are appreciated for helping moderate electricity usage.
Noise Level
Operates quietly on low settings, making it unobtrusive and suitable for bedrooms or living spaces.
Weight and Dimensions
Installation can be challenging due to the unit's weight and size, often requiring two people and careful handling.
Additional Features
Certain users noted a persistent clean filter indicator despite a clean filter, indicating a minor annoyance in the electronic controls.

The LG LW1024RD window air conditioner is a solid choice for cooling medium-sized rooms up to 450 square feet, making it suitable for larger bedrooms or living rooms. It delivers a decent cooling capacity of 10,000 BTUs, which is enough to keep such spaces comfortable during warm weather. The unit offers three fan speeds and an Auto Cool mode, allowing you to fine-tune the airflow and cooling to your preference. One noteworthy feature is the quiet operation on low mode, running at about 52 dB, so it won’t distract you with loud noise—although on higher settings, noise can reach around 60 dB, which is average for window units. The energy efficiency ratio (EER) is 11.4, which is reasonable but not the highest in its class, so you might see moderate electricity use compared to more energy-star rated models.

It includes convenient features like electronic controls with a remote and an auto-restart function that turns the AC back on after a power outage, adding to ease of use. Physically, it weighs 57 pounds and has typical window AC dimensions, which means installation may require two people and checking your window size to ensure a good fit. The unit also has a built-in dehumidifier, which can improve indoor comfort by reducing moisture. A potential downside is the one-year limited warranty, which is standard but on the shorter side for major appliances. This LG air conditioner is a reliable, user-friendly option if you want effective cooling with quiet operation and handy features for medium-sized rooms, but keep in mind it’s not the lightest or most energy-efficient model available.

Rating
9.3
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
16897 reviews

Cooling Capacity (BTUs)
Cools quickly and effectively, often beyond the intended room size, providing reliable comfort during warm weather.
Energy Efficiency Ratio (EER)
Features like the energy saver mode are appreciated for helping moderate electricity usage.
Noise Level
Operates quietly on low settings, making it unobtrusive and suitable for bedrooms or living spaces.
Weight and Dimensions
Installation can be challenging due to the unit's weight and size, often requiring two people and careful handling.
Additional Features
Certain users noted a persistent clean filter indicator despite a clean filter, indicating a minor annoyance in the electronic controls.

Buying Guide for the Best Lightweight Window Air Conditioner

Choosing the right lightweight window air conditioner can make a significant difference in your comfort during hot weather. The key is to find a unit that fits your specific needs, taking into account factors like room size, energy efficiency, noise level, and additional features. By understanding the key specifications, you can make an informed decision that ensures you stay cool without unnecessary hassle or expense.
Cooling Capacity (BTUs)Cooling capacity, measured in British Thermal Units (BTUs), indicates how much heat an air conditioner can remove from a room per hour. This is crucial because an underpowered unit won't cool effectively, while an overpowered one can waste energy and money. For small rooms (100-300 sq. ft.), look for units with 5,000-6,000 BTUs. Medium rooms (300-500 sq. ft.) need 7,000-8,000 BTUs, and larger rooms (500-700 sq. ft.) require 9,000-12,000 BTUs. Match the BTU rating to your room size for optimal performance.
Energy Efficiency Ratio (EER)The Energy Efficiency Ratio (EER) measures how efficiently an air conditioner uses energy to cool a room. A higher EER means better energy efficiency, which can lower your electricity bills. EER values typically range from 8 to 12. For the best efficiency, look for units with an EER of 10 or higher. If you plan to use the air conditioner frequently, investing in a higher EER unit can save you money in the long run.
Noise LevelNoise level, measured in decibels (dB), indicates how loud the air conditioner will be when operating. This is important for maintaining a comfortable and quiet environment, especially in bedrooms or offices. Noise levels for window air conditioners typically range from 50 to 60 dB. For a quieter experience, look for units with noise levels below 55 dB. Consider where you will place the unit and how sensitive you are to noise when making your choice.
Weight and DimensionsWeight and dimensions are critical for ensuring the air conditioner fits your window and can be installed easily. Lightweight units are easier to handle and install, especially if you plan to do it yourself. Check the unit's weight and compare it to your window's size and structure. Most lightweight window air conditioners weigh between 40 to 60 pounds. Ensure the unit's dimensions match your window opening to avoid installation issues.
Additional FeaturesAdditional features can enhance the convenience and functionality of your air conditioner. Common features include remote control, programmable timers, sleep mode, and energy-saving settings. These features can make the unit easier to use and more efficient. Consider which features are important to you based on your lifestyle and preferences. For example, a remote control can be handy for adjusting settings from across the room, while a programmable timer can help you save energy by running the unit only when needed.

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