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10 Best Lightweight Window Air Conditioner 2026 in the United States

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Our Top Picks

#1

Winner

LG 8,000 BTU Window Air Conditioner, 115V, Cools 340 Sq.Ft. for Bedroom, Living Room, Apartment, Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, White

Rating
10.0
Chosen by1,262
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
17486 reviews

Cooling Capacity (BTUs)
This unit delivers solid cooling performance and is well-sealed when installed, fitting snugly into the window frame to prevent air leaks.
Energy Efficiency Ratio (EER)
The energy-saving mode intelligently cycles the fan and compressor, reducing noise and maintaining comfortable air circulation without stagnation.
Noise Level
It operates quietly, with noise levels comparable to a gentle household fan, making it ideal for bedrooms where low noise is essential.
Weight and Dimensions
Installation requires care due to the unit's heavy weight and bulk; testing before full installation is crucial to avoid the hassle of returns.
Additional Features
Some users experienced initial mechanical quirks like a crooked blower fan or persistent filter light that needed manual adjustments.

The LG 8,000 BTU Window Air Conditioner is a solid choice for cooling medium-sized rooms up to about 350 square feet, such as bedrooms or small living rooms. Its cooling power fits spaces roughly 14 by 25 feet, covering many common room sizes effectively. Notably, it operates quietly, running as low as 53 decibels on the lowest fan setting, so it won’t disturb sleep or work. It offers three fan speeds and an Auto Cool mode, allowing easy airflow adjustment for comfort. The unit includes convenient features like a remote control, a digital panel for simple operation, and a 4-way air deflection to direct cool air where desired. Maintenance is straightforward with a slide-out, washable filter and a filter light reminder. The Auto Restart feature ensures it turns back on after a power outage, which is beneficial in areas with unstable electricity.

However, the unit weighs 58 pounds, which might require two people for safe installation. It is not Energy Star rated and has a Seasonal Energy Efficiency Ratio (SEER) of 13, indicating it is less energy-efficient compared to some other models and may incur higher electricity costs with frequent use. The dimensions are compact but typical for this cooling capacity. A 1-year warranty covering parts and labor is included. This LG model is suitable for those seeking a reliable, quiet air conditioner that cools efficiently without too many complicated features, making it ideal for bedrooms or smaller apartments where noise level and ease of use are priorities.

Rating
10.0
Chosen by1,262
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
17486 reviews

Cooling Capacity (BTUs)
This unit delivers solid cooling performance and is well-sealed when installed, fitting snugly into the window frame to prevent air leaks.
Energy Efficiency Ratio (EER)
The energy-saving mode intelligently cycles the fan and compressor, reducing noise and maintaining comfortable air circulation without stagnation.
Noise Level
It operates quietly, with noise levels comparable to a gentle household fan, making it ideal for bedrooms where low noise is essential.
Weight and Dimensions
Installation requires care due to the unit's heavy weight and bulk; testing before full installation is crucial to avoid the hassle of returns.
Additional Features
Some users experienced initial mechanical quirks like a crooked blower fan or persistent filter light that needed manual adjustments.
#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
9.4
Cooling Capacity (BTUs)
Noise Level
Weight and Dimensions

Most important from
18705 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
9.4
Cooling Capacity (BTUs)
Noise Level
Weight and Dimensions

Most important from
18705 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

Midea 5,000 BTU EasyCool Small Window Air Conditioner - Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office

Rating
8.8
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
18478 reviews

Cooling Capacity (BTUs)
Works great, blows cold, and is way quieter than the old one it replaced.
Energy Efficiency Ratio (EER)
Efficient AC and heater, using less electricity than similar units.
Noise Level
Surprisingly quiet, you barely know it is on.

The Midea 5,000 BTU EasyCool Small Window Air Conditioner is a great option for cooling small rooms up to 150 square feet. It offers a decent cooling capacity with 5,000 BTUs, making it suitable for small bedrooms, living rooms, or home offices. One of its standout features is its energy efficiency, with a Combined Energy Efficiency Rate (CEER) of 11.0, which helps in reducing energy costs. However, it is not Energy Star certified, which might be a consideration for some buyers looking for the most energy-efficient options available.

The noise level is 57 dB, which is relatively quiet, comparable to a household refrigerator, making it suitable for a peaceful environment. Weighing 35.3 pounds and with dimensions of 15.35"D x 15.98"W x 12.05"H, it is compact and lightweight, making installation relatively easy. The unit features mechanical controls that are straightforward to use, and it includes a removable and reusable filter for easy maintenance.

Additional features include 7 temperature settings, 2 cooling and 2 fan-only speeds, and 2-way air direction, allowing for customizable comfort. The installation process is user-friendly, with all necessary mounting accessories included, although a screwdriver is required. A one-year parts and labor warranty provides some peace of mind regarding the product's quality. The Midea 5,000 BTU EasyCool is a solid, budget-friendly choice for those needing an efficient solution for smaller spaces.

Rating
8.8
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level

Most important from
18478 reviews

Cooling Capacity (BTUs)
Works great, blows cold, and is way quieter than the old one it replaced.
Energy Efficiency Ratio (EER)
Efficient AC and heater, using less electricity than similar units.
Noise Level
Surprisingly quiet, you barely know it is on.

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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