10 Best energy efficient window air conditioners of 2025

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Best Choice

1

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Midea

Midea MAW08V1QWT U-Shaped AC Window Air Conditioner

22% Off
9.7

Exceptional

Our Rating
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Value for Money

2

Frigidaire

Frigidaire 6,000 BTU Window Air Conditioner & Dehumidifier, 115V, Cools up to 250 Sq. Ft. for Apartment, Dorm Room & Small/Medium Rooms, with Remote Control, Programmable Timer, and Sleep Mode, White
9.6

Exceptional

Our Rating
3

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 Kit, Intuitive Mechanical Controls, White

31% Off
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.
9.5

Excellent

Our Rating

8.4
Easy installation

8.0
worth the money

8.0
Noise level
4

GE
GE Window Air Conditioner Unit, 6,000 BTU for Small Rooms up to 250 sq ft. with Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White

24% Off
Main highlights

Efficient Cooling for Small Spaces
The GE 6000 BTU air conditioner effectively cools rooms up to 250 sq ft, making it ideal for bedrooms and small apartments.

Perfect for Nighttime Use
Low-noise operation ensures a peaceful environment, ideal for bedrooms or home offices requiring minimal disruption.

Easy Installation and Maintenance
Comes with an EZ Mount installation kit and a slide-out filter for hassle-free setup and cleaning.
Key specs
- floor area:250 Square Feet
- installation:Window, EZ Mount
- noise:56 dB
- special features:3 cooling modes
- voltage:115 Volts
9.4

Excellent

Our Rating
5

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

24% 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.
9.1

Excellent

Our Rating

9.7
Comfort

8.2
worth the money

8.2
Efficient Energy Use
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6

Towallmark

6000-BTU Window Air Conditioner, Wi-Fi Enabled, Up to 250 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Digital Temperature Display, Remote Control

17% Off
9.0

Excellent

Our Rating
7

Midea
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
Main highlights

Efficient Cooling for Small Spaces
Midea 5,000 BTU AC efficiently cools rooms up to 150 sq. ft.

Perfect for Bedrooms and Offices
Ideal for small bedrooms, living rooms, and home offices.

Impressive Cooling Performance
Users praise its ability to lower room temperature quickly.
8.9

Very Good

Our Rating

9.3
Easy installation

9.1
worth the money

8.2
Power saving mode
8

ACHAZEL

ACHAZEL 6000 BTU Window Air Conditioner with WiFi, Smart Window AC Unit with Remote, Energy Saving, Easy Install Kit, Cools up to 250 Square Feet

23% Off
8.7

Very Good

Our Rating
9

LG
LG 5000 BTU Window Air Conditioners [2023 New] Easy Mechanical Control Ultra-Quiet Compact-size Cools Washable Filter 150 Sq.Ft. for Small Room AC Unit air conditioner Easy Installation White LW5023
Main highlights

Compact Cooling Solution
5,000 BTU capacity ideal for cooling rooms up to 150 sq. ft.

Perfect for Small Spaces
Best suited for sheds, small rooms, or wine cabinets.

Highly Praised Fit
Customers appreciate its perfect fit for tight windows.
Key specs
- floor area:150 Square Feet
- installation:Window installation kit
- noise:50 dB
- special features:Easy-to-Clean Washable Filter
- voltage:115 Volts
8.6

Very Good

Our Rating

8.0
Noise level

8.0
Efficient Energy Use

8.0
Remote Control
10

MERXENG

6000 BTU Window Air Conditioner with WiFi, Cools up to 250 Sq. Ft., Energy Saving Window AC Unit with Remote & App Control & Timer Function & Easy Install Kit, Perfect for Small Bedroom, Living Room
8.5

Good

Our Rating

10 Best energy efficient window air conditioners of 2025

1

Midea MAW08V1QWT U-Shaped AC Window Air Conditioner

How do we rank?

How do we rank?

Analyzing top stores

2

Frigidaire 6,000 BTU Window Air Conditioner & Dehumidifier, 115V, Cools up to 250 Sq. Ft. for Apartment, Dorm Room & Small/Medium Rooms, with Remote Control, Programmable Timer, and Sleep Mode, White

3

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

8.4

8.0

8.0

4

GE Window Air Conditioner Unit, 6,000 BTU for Small Rooms up to 250 sq ft. with Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White

5

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

6

6000-BTU Window Air Conditioner, Wi-Fi Enabled, Up to 250 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Digital Temperature Display, Remote Control

7

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

9.3

9.1

8.2

8

ACHAZEL 6000 BTU Window Air Conditioner with WiFi, Smart Window AC Unit with Remote, Energy Saving, Easy Install Kit, Cools up to 250 Square Feet

9

LG 5000 BTU Window Air Conditioners [2023 New] Easy Mechanical Control Ultra-Quiet Compact-size Cools Washable Filter 150 Sq.Ft. for Small Room AC Unit air conditioner Easy Installation White LW5023

8.0

8.0

8.0

10

6000 BTU Window Air Conditioner with WiFi, Cools up to 250 Sq. Ft., Energy Saving Window AC Unit with Remote & App Control & Timer Function & Easy Install Kit, Perfect for Small Bedroom, Living Room

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