June 29, 2025

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10 Best energy efficient window air conditioners of 2025

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Best Choice

1

Clicked 636 times in the last month

LG
LG 14,000 BTU DUAL Inverter Smart Window Air Conditioner, 115V, Cools 700 Sq. Ft. for Bedroom, Living Room, Apartment, Quiet Operation, ENERGY STAR, works with LG ThinQ, Amazon Alexa and Hey Google

13% Off
Main highlights

Key Features and Benefits
Ultra Quiet DUAL Inverter technology, 35% more energy-efficient, LG ThinQ for remote control, compatible with Alexa/Google, and 4 cooling speeds.

Ideal Use Cases
Perfect for large rooms up to 800 sq. ft., especially bedrooms and living spaces where quiet operation and energy savings are prioritized.

Customer Reviews Highlight
Most praised for its whisper-quiet operation, making it ideal for night-time use and in environments where noise is a concern.
9.8

Exceptional

Our Rating

9.9
Remote Control

9.9
Efficient Energy Use

9.5
Noise level
How do we rank?

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Based on millions of stores and reviews

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Value for Money

2

Midea
Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner, Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control

12% Off
Main highlights

Ultra Quiet Operation
The Midea U Smart Inverter AC operates at just 32 dBA, making it significantly quieter than traditional units.

Energy Savings and Efficiency
Achieves over 35% energy savings with advanced DC inverter technology, earning ENERGY STAR Most Efficient Certification.

Smart Control and Security
Wi-Fi enabled with Alexa/Google Assistant compatibility and advanced security features for safe ground floor installation.
9.7

Exceptional

Our Rating

9.3
Efficient Energy Use

9.3
Noise level

9.1
worth the money
3

Frigidaire
Frigidaire 5,000 BTU Window-Mounted Air Conditioner, Cools Up to 250 Sq. Ft., Quiet Operation, Effortless Temperature Control, 2 Fan Speeds, Auto Restart, White

16% Off
Main highlights

Effortless Temperature Control
Maintains preset room temperature with button control for consistent comfort.

Ideal for Small Spaces
Perfect for cooling rooms up to 150 square feet efficiently.

Praised for Quiet Operation
Customers love its quiet performance and effective cooling.
9.4

Excellent

Our Rating

9.7
Comfort

8.2
worth the money

8.2
Efficient Energy Use
4

Amazon Basics
Amazon Basics 5000 BTU Small Window Air Conditioner, Up to 150 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Fit, Intuitive Mechanical Controls, White
Main highlights

Compact Efficiency
5000 BTU unit efficiently cools rooms up to 150 sq ft, ideal for small spaces.

Versatile Application
Perfect for dorm rooms, RVs, and small bedrooms needing efficient cooling.

Customer Praised Performance
Highly effective in extreme heat, quickly cooling spaces even in triple-digit temperatures.
9.3

Excellent

Our Rating

8.4
Easy installation

8.0
worth the money

8.0
Noise level
5

Midea
Midea 6,000 BTU Window Air Conditioner, 3-in-1 Cool/Fan/Dehumidifier Window AC Unit, Easycool Air Conditioner with Remote Control, Cools up to 250 Sq. Ft., Fits bedroom, study, office

21% Off
Main highlights

Versatile Comfort Modes
The Midea EasyCool offers cooling, air circulation, and dehumidification for spaces up to 250 sq. ft.

Ideal for Small Spaces
Perfect for apartments, offices, or rooms needing efficient temperature control.

Praised Quiet Operation
Customers appreciate the low noise level of 52 dB during operation.
Key specs
- floor area:250 Square Feet
- wattage:545 watts
- installation:Window
- noise:52 dB
- special features:Remote Controlled, Eco Mode
9.2

Excellent

Our Rating

8.0
Remote Control

8.0
Efficient Energy Use

8.0
Noise level
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6

Air Choice

Air Choice Portable Air Conditioner, 10000 BTU Air Conditioner Portable for Room Up to 450 Sq.Ft, Remote Control, 24H Timer, Dehumidifier & Fan Modes, 3-in-1 AC Unit with Window Kit for Home Office
9.1

Excellent

Our Rating
7

LG
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
Main highlights

Low Noise Performance
Operates at 53dB, ideal for quiet environments and sleep.

Ideal for Medium Rooms
Perfect for bedrooms or offices up to 350 sq. ft.

Highly Praised Durability
Customers appreciate its durability and consistent performance.
9.0

Excellent

Our Rating

9.1
Simple to use

8.4
Remote Control

8.2
Efficient Energy Use
8

hykolity

WiFi Enabled 6,000 BTU Window Air Conditioner, Smart Window AC Unit with Remote, Energy Saving, Easy Install Kit, Cools up to 250 Square Feet

15% Off
8.9

Very Good

Our Rating

8.9
Remote Control

8.4
Efficient Energy Use

8.0
Noise level
9

ROVSUN
ROVSUN Smart 6000 BTU Window Air Conditioner with WiFi, Energy Saving Window AC Unit with Remote & App Control & Timer Function & Easy Install Kit, for Rooms up to 250 Square Feet, 115V/60Hz, White
Main highlights

Key Features and Benefits
Efficient 6,000 BTU cooling, easy operation via LED display, remote, or app. Energy-saving with eco-friendly design. Simple assembly with 1-year warranty.

Ideal Use Cases
Perfect for compact spaces up to 250 sq ft like homes, offices, or apartments. Excels in quick cooling and energy-efficient operation.

Customer Reviews Highlight
Most praised for its rapid cooling ability, ease of installation, and the convenience of multiple operation modes.
8.8

Very Good

Our Rating

8.0
Efficient Energy Use

8.0
Remote Control

8.0
worth the money
10

Frigidaire
Frigidaire 8,000 BTU Window Air Conditioner & Dehumidifier, 115V, Cools up to 350 Sq. Ft. for Apartment, Dorm Room & Small/Medium Rooms, with Remote Control, Programmable Timer, and Sleep Mode, White
Main highlights

Programmable 24-Hour Timer and Sleep Mode
Features a programmable timer and sleep mode for customized comfort and energy savings, plus effortless temperature control and multi-speed fan for flexibility.

Ideal for Hot Climates and Small Spaces
Perfect for cooling small rooms and apartments, especially in hot climates like Texas. Great for those needing efficient, reliable cooling.

Highly Praised Cooling Efficiency
Customers love the unit's ability to keep rooms cool even in extreme heat, with many noting its efficiency and relatively low noise levels.
Key specs
- floor area:350 Square Feet
- wattage:670
- installation:Window
- noise:55 dB
- special features:Remote control
8.7

Very Good

Our Rating

9.9
Temperature control

8.7
Remote Control

8.4
Efficient Energy Use

10 Best energy efficient window air conditioners of 2025

1

LG 14,000 BTU DUAL Inverter Smart Window Air Conditioner, 115V, Cools 700 Sq. Ft. for Bedroom, Living Room, Apartment, Quiet Operation, ENERGY STAR, works with LG ThinQ, Amazon Alexa and Hey Google

9.9

9.9

9.5

How do we rank?

How do we rank?

Analyzing top stores

2

Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner, Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control

9.3

9.3

9.1

3

Frigidaire 5,000 BTU Window-Mounted Air Conditioner, Cools Up to 250 Sq. Ft., Quiet Operation, Effortless Temperature Control, 2 Fan Speeds, Auto Restart, White

9.7

8.2

8.2

4

Amazon Basics 5000 BTU Small Window Air Conditioner, Up to 150 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Fit, Intuitive Mechanical Controls, White

8.4

8.0

8.0

5

Midea 6,000 BTU Window Air Conditioner, 3-in-1 Cool/Fan/Dehumidifier Window AC Unit, Easycool Air Conditioner with Remote Control, Cools up to 250 Sq. Ft., Fits bedroom, study, office

8.0

8.0

8.0

6

Air Choice Portable Air Conditioner, 10000 BTU Air Conditioner Portable for Room Up to 450 Sq.Ft, Remote Control, 24H Timer, Dehumidifier & Fan Modes, 3-in-1 AC Unit with Window Kit for Home Office

7

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

9.1

8.4

8.2

8

WiFi Enabled 6,000 BTU Window Air Conditioner, Smart Window AC Unit with Remote, Energy Saving, Easy Install Kit, Cools up to 250 Square Feet

8.9

8.4

8.0

9

ROVSUN Smart 6000 BTU Window Air Conditioner with WiFi, Energy Saving Window AC Unit with Remote & App Control & Timer Function & Easy Install Kit, for Rooms up to 250 Square Feet, 115V/60Hz, White

8.0

8.0

8.0

10

Frigidaire 8,000 BTU Window Air Conditioner & Dehumidifier, 115V, Cools up to 350 Sq. Ft. for Apartment, Dorm Room & Small/Medium Rooms, with Remote Control, Programmable Timer, and Sleep Mode, White

9.9

8.7

8.4

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