10 Best Energy Star Air Conditioner of 2025

Tested and Reviewed: Top 10 Energy Star Air Conditioner deals with expert ratings from 8.1 to a perfect 10

November 2025 Edition

Editor's Choice

9.7

Save 8%

Midea

Midea 12,000 BTU Smart Inverter Air Conditioner Window Unit with Heat and Dehumidifier – Cools up to 550 Sq. Ft., Energy Star Rated, Quiet Operation, Electronic Controls, Remote Control, White

8% OffFree Shipping

Editor's bottom line:

“This energy star air conditioner is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Multi-Season Comfort - This Midea 12000 BTU air conditioner is better than standard ac units. It will beat the heat in summer with powerful cooling and dehumidification and keep you warm through the fall with supplemental heat. Best for large rooms up to 550 square feet. NOTE: heat pump function will not work if outside temp is 41°F or below..Control Type : Electronic.
Easy To Use This air conditioner and heat unit comes with an LED display, 5 Modes (Heat, Auto, Cool, Dry, Fan), 3 speed settings (Auto/H/M/L), 24-hr Timer, and ECO energy saver. The Swing button adjusts the louvers up/down to direct the airflow. Wireless control enabled window ac with heat unit from anywhere with the SmartHome App, or with your voice via Alexa and Google Assistant. All functions can be set via the control panel, remote control, and app or voice assistant.
Save Energy Being Cool Save on energy costs and enjoy ultimate comfort with this energy star certified unit. This energy efficient air conditioner unit is engineered with variable-speed inverter technology that will quickly cool your bedroom or apartment space while using considerably less electricity; up to 35% energy savings compared to the Energy Conservation Standard. Cooling 12,000 BTUs, CEER 13.3, 115V, UL listed, Automatic Shutoff and Defrost Control. Washable filter is easily accessed from front panel for regular cleaning to maintain peak performance.
Ultra Low Noise Performance This ac window unit operates at a noise level as low as 45 dBA. Its such a quiet air conditioner that you will barely notice it, even when its on high. Enjoy your Zoom call, watch your favorite TV show, have a conversation. This ac unit for bedroom also creates just the right amount of white noise so you can get some rest.
Install Specs This window air conditioner is designed to fit double hung windows with opening widths of 24 to 38.5 inches. Lower sash must open sufficiently to allow a clear vertical opening of 14.5 inches. AC window unit measures 19.41"W x 22.17"D x 13.9"H. Included components: 12000 btu window air conditioner, remote control, installation kit. This ac heater combo window unit is as a close as you can get to a mini split a/c. You may like it so much you just might buy two!

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Picked by 229 people today

9.5

Midea

Midea 12,000 BTU U Shaped Smart Inverter Window Air Conditioner - Cools 550 Sq Ft, Ultra Quiet with Open Window Flexibility - Alexa/Google Assistant Compatible - 35% Energy Savings, Remote (Updated)

Free Shipping

Main Highlights

ULTRA QUIET - The U-shape design of Midea U Smart Inverter AC uses your window to block noise outside. The highly-efficient inverter system warrants ultra-low noise and vibration, 10x quieter than traditional units with operation as low as 32 dBA.Control Type: Electronic. Clean Filter Indicator Light: Yes. Rated Cooling Amps (AHAM): 12.17. Refrigerant: R32. Cooling Watts: 1140W.
MORE THAN 35% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U window air conditioner achieves over 35% energy savings compared to other traditional units. It is the first window AC to obtain the ENERGY STAR Certification.
SMART CONTROL - Midea U Smart Inverter AC is Wi-Fi enabled and can be controlled from anywhere using the SmartHome app on iOS or Android. You can also use voice commands throughout your house, office, or apartment using Alexa or Google Assistant devices.
FLEXIBLE WINDOW OPENING - The U-shaped design allows your window to open, bringing fresh air into your home and maintaining more of your view when the unit is installed. When the window is closed, the Anti-Theft Mechanism locks the window for added safety.
ROBUST INSTALLATION - Install the included quick-snap bracket, set the unit on the bracket, and secure the sidearms. Then you are all done and ready to enjoy. Available for single-hung or double-hung windows with width 22"-36", minimal height at 13.75".

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9.5

GE

GE Window Air Conditioner 12,000 BTU for Rooms up to 550 sq ft., Wi-Fi Enabled, Energy-Efficient Cooling for Large Rooms, Easy Install Kit, Control Using Remote or Smartphone App, White

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Main Highlights

GE 12000 BTU SMART WINDOW AIR CONDITIONER - Designed to efficiently cool rooms up to 550 sq ft; easy install kit included so you can start cooling right away.
MAXIMUM COMFORT FOR LARGE ROOMS: This AC unit is the right size for delivering quiet, 12000 BTU cooling capacity to medium-sized areas like living rooms and family rooms
SMART, EASY OPERATION: Integration with the SmartHQ app allows you to monitor, schedule, and control your smart AC unit from anywhere, while compatibility with your favorite devices like Amazon Alexa and Google Assistant makes everyday use easier and more versatile than ever; or you can use the included remote control
ECO MODE SAVES ENERGY: When the room is cool enough, Eco Mode automatically turns off the fan and compressor, saving you money on utilities; energy-efficient with 3 cooling modes and 3 fan speeds to provide flexible and optimal room temperature
EASY INSTALLATION AND CLEANING: This AC has a fixed chassis and installs easily in a double hung window (size: W 25 - 36.625" x H 14.563") with included EZ Mount installation kit; slide-out, washable filter makes cleaning a breeze to keep your unit running its best when cleaned every 30 days

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9.2

Save 25%

Profile

GE Profile ClearView Inverter Window Air Conditioner Unit, 10,300 BTU, U-Shaped Adjustable Depth, Energy Efficient Cooling up to 450 sq ft., Ultra Quiet, SMART Home Capable, Includes Remote, White

25% OffFree Shipping

Main Highlights

FULL WINDOW VIEW: This Energy Star certified window air conditioner is designed to maintain the full view through the window, letting it open and close freely after you install the unit and allowing more natural light into the room. Fits windows 20"-40" wide, 13" minimum window opening height, 10" minimum height from floor. Dimensions: 12 3/4 H x 19 5/8 W x 28 D
INVERTER TECHNOLOGY: Adaptive air conditioner inverter technology operates at smooth, varying levels, reducing noise and maximizing energy efficiency. At 34% more efficient, you can save energy without sacrificing performance
ULTRA QUIET OPERATION: This quiet air conditioner reaches sounds as low as 40 dB, underlining GE Profile's rating as the Quietest Window AC Brand in the US; ClearView's operation keeps the air flowing for minimal disruption
INDUSTRY EXCLUSIVE FLEX-DEPTH: The flex-depth design is engineered to expand to multiple positions, accommodating walls between 4.5" and 13.75" thick. The unit comes in the closed position and can be adjusted based on your windowsill depth for a secure, custom fit
BUILT IN WI-FI: Use the SmartHQ app to control and monitor this WiFi-enabled smart air conditioner from anywhere, giving you connected peace of mind, while compatibility with your favorite devices like Amazon Alexa and Google Assistant makes everyday use easier and more versatile than ever; or you can use the included remote control

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9.0

Midea

Midea 8,000 BTU Smart Inverter Air Conditioner Window Unit with Heat and Dehumidifier – Cools up to 350 Sq. Ft., Energy Star Rated, Quiet Operation, Electronic Controls, Remote Control, White

Free Shipping

Main Highlights

Multi-Season Comfort - Midea 8000 BTU window air conditioner with heat is better than standard ac units. It will beat the heat in summer with powerful cooling and dehumidification and keep you warm through the fall with supplemental heat. Best for large rooms up to 350 square feet. NOTE: heat pump function works when outside temp> 41°F.
Easy To Use This air conditioner and heat unit comes with an LED display, 5 Modes (Heat, Auto, Cool, Dry, Fan), 3 speed settings (Auto/H/M/L), 24-hr Timer, and ECO energy saver. The Swing button adjusts the louvers up/down to direct the airflow. Wireless control enabled window ac with heat unit from anywhere with the SmartHome App, or with your voice via Alexa and Google Assistant. All functions can be set via the control panel, remote control, and app or voice assistant.
Save Energy Being Cool Save on energy costs and enjoy ultimate comfort with this energy star certified unit. This energy efficient air conditioner unit is engineered with variable-speed inverter technology that will quickly cool your bedroom or apartment space while using considerably less electricity; up to 35% energy savings compared to the Energy Conservation Standard. Washable filter is easily accessed from front panel for regular cleaning to maintain peak performance.
Ultra Low Noise Performance This ac window unit operates at a noise level as low as 45 dBA. Its such a quiet air conditioner that you will barely notice it, even when its on high. Enjoy your Zoom call, watch your favorite TV show, have a conversation. This ac unit for bedroom also creates just the right amount of white noise so you can get some rest.
Install Specs This window air conditioner is designed to fit double hung windows with opening widths of 24 to 38.5 inches. Lower sash must open sufficiently to allow a clear vertical opening of 14.5 inches. AC window unit measures 19.41"W x 22.17"D x 13.9"H. Included components: 8000 btu window air conditioner, remote control, installation kit. This ac heater combo window unit is as a close as you can get to a mini split a/c. You may like it so much you just might buy two!

Show Price

8.8

Midea

Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner - Cools 350 Sq Ft, Ultra Quiet with Open Window Flexibility - Alexa/Google Assistant Compatible - 35% Energy Savings, Remote (Updated)

Free Shipping

Main Highlights

ULTRA QUIET - The U-shape design of Midea U Smart Inverter air conditioner uses your window to block noise outside. The highly-efficient inverter system warrants ultra-low noise and vibration, 10x quieter than traditional units with operation as low as 32 dBA. Cooling Watts: 710W, Rated Cooling Amps (AHAM): 8.78.Airflow (CFM) Roomside (hi low): 215/150. Refrigerant: R32.
MORE THAN 35% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U window air conditioner achieves over 35% energy savings compared to other traditional units. It is the first window AC to obtain the ENERGY STAR Certification.
SMART CONTROL - Midea U Smart Inverter air conditioner is Wi-Fi enabled and can be controlled from anywhere using the SmartHome app on iOS or Android. You can also use voice commands throughout your house, office, or apartment using Alexa or Google Assistant devices.
FLEXIBLE WINDOW OPENING - The U-shaped design allows your window to open, bringing fresh air into your home and maintaining more of your view when the window air conditioner is installed. When the window is closed, the Anti-Theft Mechanism locks the window for added safety.
ROBUST INSTALLATION - Install the included quick-snap bracket, set the air conditioner on the bracket, and secure the sidearms. Then you are all done and ready to enjoy. Available for single-hung or double-hung windows with width 22"-36", minimal height at 13.75".

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8.6

Save 27%

Midea

Midea 10,000 BTU U Shaped Smart Inverter Window Air Conditioner - Cools 450 Sq Ft, Ultra Quiet with Open Window Flexibility - Alexa/Google Assistant Compatible - 35% Energy Savings, Remote (Updated)

27% OffFree Shipping

Main Highlights

ULTRA QUIET - The U-shape design of Midea U Smart Inverter AC uses your window to block noise outside. The highly-efficient inverter system warrants ultra-low noise and vibration, 10x quieter than traditional units with operation as low as 32 dBA. Cooling Watts: 890W. Rated Cooling Amps (AHAM): 9.97. Control Type: Electronic. Refrigerant: R32.
MORE THAN 35% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to other traditional units. It is the first window AC to obtain the ENERGY STAR Certification.
SMART CONTROL - Midea U Smart Inverter AC is Wi-Fi enabled and can be controlled from anywhere using the SmartHome app on iOS or Android. You can also use voice commands throughout your house, office, or apartment using Alexa or Google Assistant devices.
FLEXIBLE WINDOW OPENING - The U-shaped design allows your window to open, bringing fresh air into your home and maintaining more of your view when the unit is installed. When the window is closed, the Anti-Theft Mechanism locks the window for added safety.
ROBUST INSTALLATION - Install the included quick-snap bracket, set the unit on the bracket, and secure the sidearms. Then you are all done and ready to enjoy. Available for single-hung or double-hung windows with width 22"-36", minimal height at 13.75".

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Best Value

8.3

Save 37%

Hisense

Hisense 6,000 BTU Smart Inverter Window Air Conditioner, 3 modes (Cooling, Fan, Dehumidifier), Easy Installation,Ultra Quiet, 24.5% more Energy Saving, 2 Years Warranty

37% OffFree Shipping

Main Highlights

Up to 24.5% Energy Savings Advanced inverter technology optimizes energy efficiency, reducing power consumption by up to 24.5% compared to conventional window unitshelping you save on electricity bills without compromising performance.
Inverter Technology for Superior Comfort Our cutting-edge inverter system ensures quieter operation, precise temperature control, and enhanced energy efficiency, delivering consistent cooling while keeping costs low.
ENERGY STAR Certified Efficiency Designed to meet strict ENERGY STAR standards, this unit operates with maximum efficiency, helping you reduce your carbon footprint while saving on energy costs.
Effortless Installation The easy-to-install window kit ensures a quick and hassle-free setup, so you can start enjoying cool comfort in no timeno professional help required.
Hassle-Free Maintenance A washable, removable filter makes cleaning simple and convenient, ensuring fresh air and long-lasting performance.
Smart Home Connectivity with ConnectLife Control your AC from anywhere using the ConnectLife App or with voice commands via Alexa and Google Assistant. Now Matter Certified for seamless smart home integration.
Customized Comfort with Multi-Purpose Modes Enjoy tailored cooling with three versatile modes: Fan for air circulation, Dry for humidity control, and Cool for powerful air conditioning, adapting to any indoor climate need.
Convenient Dual Control System Adjust settings effortlessly with the user-friendly control panel or the included remote control, giving you flexible control at your fingertips.
Industry-Leading 2-Year Warranty Backed by a reliable 2-year warrantydouble the coverage of standard unitsfor long-lasting performance and peace of mind.
Smart 24-Hour Timer Schedule automatic on/off times to match your routine, maximizing convenience and energy efficiency.

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8.1

Save 13%

GE

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

13% OffFree Shipping

Main Highlights

GE 5000 BTU MECHANICAL WINDOW AIR CONDITIONER: Designed to efficiently cool rooms up to 150 sq ft; easy install kit included so you can start cooling right away.
BEST FOR SMALL ROOMS: This AC unit is the right size for delivering 5000 BTU cooling capacity to smaller areas like bedrooms, studio apartments, guest rooms, and home offices
LOW-NOISE OPERATION - Keep the cool air flowing with minimal disruption; ideal for nighttime use in bedrooms
MAXIMUM COMFORT: Efficient with 2 cooling modes and 2 fan speeds to provide flexible and optimal room temperature; controls with 10 temperature settings make it easy to adjust cooling to your comfort
EASY INSTALLATION: This AC has a fixed chassis and installs easily in a double hung window (size: W 27.125 - 36 x H 13.375") with included EZ Mount installation kit

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8.1

Save 25%

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

25% OffFree Shipping

Main Highlights

[Maximum Cooling] Cooling Coverage up to 150 Square ft. is ideal for cooling small rooms with 5,000 BTU window air conditioner for 1 room or space.Frequency : 60 hertz
[Quiet & Easy to Control] LG Air Conditioners operate at sound levels as low as 50dB (low mode). Mechanical controls for AC unit make it easy to enjoy your window air conditioner's settings.
[Easy Installation & Cleaning] This AC has a fixed chassis and installs easily in a double hung window (size W 21" - 35" x H 12") with included EZ Mount installation kit; slide-out filter makes cleaning a breeze to keeps your unit running its best when cleaned every 30 days
[Easy-to-Clean Washable Filter] Captures particles from the air and keep your dehumidifier working efficiently with our easy-to-clean washable filter. window ac unit aire acondicionado de ventana
[Multiple Fan Speeds & Energy Save Function] Two cooling modes and two fan speeds let you customize your cool. Energy Save Function for lower electricity bill, Eco-friendly R32 refrigerant. air evaporative evaporative chill well artic arctic airconditioner swamp cooler conditioner personal cool acon cold frio enfriar aireacondicionado acondicionador fuerte bueno confiable robusto verano window ac unit de ventana aire acondicionado caliente para cuarto airconditoner mini aircon aircondi habitacion airconditi aircondition air condition

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Our Best Overall Choice

Best Choice

9.7

Midea

Midea 12,000 BTU Smart Inverter Air Conditioner Window Unit with Heat and Dehumidifier – Cools up to 550 Sq. Ft., Energy Star Rated, Quiet Operation, Electronic Controls, Remote Control, White

8% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Multi-Season Comfort - This Midea 12000 BTU air conditioner is better than standard ac units. It will beat the heat in summer with powerful cooling and dehumidification and keep you warm through the fall with supplemental heat. Best for large rooms up to 550 square feet. NOTE: heat pump function will not work if outside temp is 41°F or below..Control Type : Electronic.
Easy To Use This air conditioner and heat unit comes with an LED display, 5 Modes (Heat, Auto, Cool, Dry, Fan), 3 speed settings (Auto/H/M/L), 24-hr Timer, and ECO energy saver. The Swing button adjusts the louvers up/down to direct the airflow. Wireless control enabled window ac with heat unit from anywhere with the SmartHome App, or with your voice via Alexa and Google Assistant. All functions can be set via the control panel, remote control, and app or voice assistant.
Save Energy Being Cool Save on energy costs and enjoy ultimate comfort with this energy star certified unit. This energy efficient air conditioner unit is engineered with variable-speed inverter technology that will quickly cool your bedroom or apartment space while using considerably less electricity; up to 35% energy savings compared to the Energy Conservation Standard. Cooling 12,000 BTUs, CEER 13.3, 115V, UL listed, Automatic Shutoff and Defrost Control. Washable filter is easily accessed from front panel for regular cleaning to maintain peak performance.
Ultra Low Noise Performance This ac window unit operates at a noise level as low as 45 dBA. Its such a quiet air conditioner that you will barely notice it, even when its on high. Enjoy your Zoom call, watch your favorite TV show, have a conversation. This ac unit for bedroom also creates just the right amount of white noise so you can get some rest.
Install Specs This window air conditioner is designed to fit double hung windows with opening widths of 24 to 38.5 inches. Lower sash must open sufficiently to allow a clear vertical opening of 14.5 inches. AC window unit measures 19.41"W x 22.17"D x 13.9"H. Included components: 12000 btu window air conditioner, remote control, installation kit. This ac heater combo window unit is as a close as you can get to a mini split a/c. You may like it so much you just might buy two!

Show Price

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