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high efficiency air conditioners

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Best Buy customers often prefer the following products when searching for high efficiency air conditioners.

Air conditioning is a necessity in many parts of the world, and it's also a luxury in some. But no matter where you live, it's always good to know you have an efficient air conditioner to help you stay cool. Browse the top-ranked list of high efficiency air conditioners below along with associated reviews and opinions.

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  1. Whynter - Eco-friendly 8000 BTU Portable Air Conditioner - White - Front_Zoom
    Top comment

    "Great air conditioner...Quick easy transaction! Thanks Best Buy!...Great air conditioner...I'm very happy with my air conditioner is very special for small room I would recommend for everyone"

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    Product Description

    The Whynter compact CFC-free, lead-free, and high energy efficiency 8,000 BTU portable air conditioner, helps you stay cool while working with better environmental standards and reducing energy consumption. This portable air conditioner, specially designed to be light weight and extremely mobile, can be easily setup in almost any indoor location and is most commonly used in data closets / server rooms, bedrooms, classrooms and garages / workshops.

    See all Portable Air Conditioners
    Top comment

    "Great air conditioner...Quick easy transaction! Thanks Best Buy!...Great air conditioner...I'm very happy with my air conditioner is very special for small room I would recommend for everyone"

    See all customer reviews

    Product Description

    The Whynter compact CFC-free, lead-free, and high energy efficiency 8,000 BTU portable air conditioner, helps you stay cool while working with better environmental standards and reducing energy consumption. This portable air conditioner, specially designed to be light weight and extremely mobile, can be easily setup in almost any indoor location and is most commonly used in data closets / server rooms, bedrooms, classrooms and garages / workshops.

    See all Portable Air Conditioners
    See all Portable Air Conditioners
  2. GE - 350 Sq. Ft. 8,500 BTU Smart Portable Air Conditioner - White - Front_Zoom
    Top comment

    "I just started using this AC and I am really satisfied It is a little loud when the fan is on high, that's okay because it is quiet on low and med. works great. ...Awesome Air conditioner,thrilled with the performance of my new portable AC unit"

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    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU class (8100 BTU DOE) smart portable air conditioner cools medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    Top comment

    "I just started using this AC and I am really satisfied It is a little loud when the fan is on high, that's okay because it is quiet on low and med. works great. ...Awesome Air conditioner,thrilled with the performance of my new portable AC unit"

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU class (8100 BTU DOE) smart portable air conditioner cools medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  3. GE - 300 Sq. Ft. 7,500 BTU Smart Portable Air Conditioner - White - Front_Zoom
    Top comment

    "Air conditioner review...Great Portable Air Conditioner...**Product Review: GE Smart Portable Air Conditioner** Rating: ★★★★★ The GE Smart Portable Air Conditioner has truly exceeded my expectations. "

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    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 7,000 BTU class (7550 BTU DOE) smart portable air conditioner cools small rooms up to 300 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    Top comment

    "Air conditioner review...Great Portable Air Conditioner...**Product Review: GE Smart Portable Air Conditioner** Rating: ★★★★★ The GE Smart Portable Air Conditioner has truly exceeded my expectations. "

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 7,000 BTU class (7550 BTU DOE) smart portable air conditioner cools small rooms up to 300 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  4. GE - 550 Sq. Ft. 12000 BTU Smart Window Air Conditioner - White - Front_Zoom
    Top comment

    "Best Air Conditioner...I really love this Air Conditioner. It Works Great. Cool Air And Cools A big Room...Great air conditioner...Great air-conditioning, not to big just right size"

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    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 12,000 BTU smart window air conditioner cools large rooms up to 550 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    Top comment

    "Best Air Conditioner...I really love this Air Conditioner. It Works Great. Cool Air And Cools A big Room...Great air conditioner...Great air-conditioning, not to big just right size"

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 12,000 BTU smart window air conditioner cools large rooms up to 550 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    See all Window Air Conditioners
  5. GE - 250 Sq. Ft. 6000 BTU Window Air Conditioner - White - Front_Zoom
    Top comment

    "Low price and high quality...The air conditioner is cheap and works great. In 10 minutes the room is cooled to arctic temperature....Ge Window Air Conditioners...Couldn't have asked for a better Window Air conditioner. in the past I've bought other brands of window Air conditioners. "

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    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while the features make products versatile and easy to use. This 6,000 BTU window air conditioner cools small rooms up to 250 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Electronic controls with included remote make it easy to adjust and manage your settings from anywhere in your room. This AC installs easily in a double hung window with included EZ Mount window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    Top comment

    "Low price and high quality...The air conditioner is cheap and works great. In 10 minutes the room is cooled to arctic temperature....Ge Window Air Conditioners...Couldn't have asked for a better Window Air conditioner. in the past I've bought other brands of window Air conditioners. "

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while the features make products versatile and easy to use. This 6,000 BTU window air conditioner cools small rooms up to 250 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Electronic controls with included remote make it easy to adjust and manage your settings from anywhere in your room. This AC installs easily in a double hung window with included EZ Mount window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    See all Window Air Conditioners
  6. GE - 350 Sq. Ft. 8000 BTU Smart Window Air Conditioner - White - Front_Zoom
    Top comment

    "Great air conditioner. So far this has been really helpful with the high temperatures. ...works great i like the three fan speeds the high speed is really hi other air conditioners i had the high was not high to me. "

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    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use.This 8,000 BTU smart window air conditioner cools medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    Top comment

    "Great air conditioner. So far this has been really helpful with the high temperatures. ...works great i like the three fan speeds the high speed is really hi other air conditioners i had the high was not high to me. "

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use.This 8,000 BTU smart window air conditioner cools medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    See all Window Air Conditioners
  7. Windmill 8,000 BTU Smart Window Air Conditoner - White - Front_Zoom
    Top comment

    "Best choice I made in air conditioners...So much better looking and quieter than any other air conditioner I have owned. Sleek an unobtrusive in my windows....I would highly recommend Windmill air conditioners, not only for their quality and efficiency, but also their outstanding customer service."

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    Product Description

    The Windmill AC is an efficient, quiet, eco-friendly and smart window air conditioner built for the 2020s. With curved edges, clean lines, and a low-profile look, Windmill is designed to blend right into your modern home. The small-sized 8,300 BTU unit cools spaces up to 350 square feet. And comes with the install kit pre-assembled for a fast and easy setup.
    See all Window Air Conditioners
    Top comment

    "Best choice I made in air conditioners...So much better looking and quieter than any other air conditioner I have owned. Sleek an unobtrusive in my windows....I would highly recommend Windmill air conditioners, not only for their quality and efficiency, but also their outstanding customer service."

    See all customer reviews

    Product Description

    The Windmill AC is an efficient, quiet, eco-friendly and smart window air conditioner built for the 2020s. With curved edges, clean lines, and a low-profile look, Windmill is designed to blend right into your modern home. The small-sized 8,300 BTU unit cools spaces up to 350 square feet. And comes with the install kit pre-assembled for a fast and easy setup.
    See all Window Air Conditioners
    See all Window Air Conditioners
  8. Windmill WhisperTech 8,000 BTU Smart Window Air Conditioner with Inverter Technology - White - Front_Zoom
    Top comment

    "Windmill Air Conditioner...I’ve had many window air conditioners over the years in my older home. ...Easy to install, quiet and high quality. Our air conditioners needed replacing and I am so glad I purchased two."

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    Product Description

    The Windmill AC with WhisperTech Inverter Technology is an efficient, quiet, eco-friendly and smart window air conditioner built for today's needs. Award winning WhisperTech Inverter Technology saves up to 40% on energy cost, faster cooling, Quiet Operation (9x quieter than traditional units). With curved edges, clean lines, and a low-profile look, Windmill is designed to blend right into your home. The small-sized 8,000 BTU unit cools spaces up to 350 square feet. And comes with the install kit pre-assembled for a fast and easy setup.
    See all Window Air Conditioners
    Top comment

    "Windmill Air Conditioner...I’ve had many window air conditioners over the years in my older home. ...Easy to install, quiet and high quality. Our air conditioners needed replacing and I am so glad I purchased two."

    See all customer reviews

    Product Description

    The Windmill AC with WhisperTech Inverter Technology is an efficient, quiet, eco-friendly and smart window air conditioner built for today's needs. Award winning WhisperTech Inverter Technology saves up to 40% on energy cost, faster cooling, Quiet Operation (9x quieter than traditional units). With curved edges, clean lines, and a low-profile look, Windmill is designed to blend right into your home. The small-sized 8,000 BTU unit cools spaces up to 350 square feet. And comes with the install kit pre-assembled for a fast and easy setup.
    See all Window Air Conditioners
    See all Window Air Conditioners
  9. Whynter - 500 Sq. Ft. Portable Air Conditioner - Platinum/Black - Front_Zoom
    Top comment

    "Great Air conditioners...Love my new Air Conditioner especially during hot summer nights. ...Best portable air conditioner with GREAT reviews!!...Best efficiency of ALL portable air conditioners!!!!! Dual exhaust feature makes this the KING of portable air conditioners"

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    Product Description

    Whynter ARC-14S 14,000 BTU Portable Air Conditioner: Keep a pleasant temperature in any room with this portable air conditioner. With its variety of fan and dehumidifying settings, you can achieve precise climate control when and where you need it most. Save on filter replacements with the convenient washable filter.
    See all Portable Air Conditioners
    Top comment

    "Great Air conditioners...Love my new Air Conditioner especially during hot summer nights. ...Best portable air conditioner with GREAT reviews!!...Best efficiency of ALL portable air conditioners!!!!! Dual exhaust feature makes this the KING of portable air conditioners"

    See all customer reviews

    Product Description

    Whynter ARC-14S 14,000 BTU Portable Air Conditioner: Keep a pleasant temperature in any room with this portable air conditioner. With its variety of fan and dehumidifying settings, you can achieve precise climate control when and where you need it most. Save on filter replacements with the convenient washable filter.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  10. LG - 1,000 Sq. Ft. 18,000 BTU Smart Window Air Conditioner - White - Front_Zoom
    Top comment

    "Great air conditioner...I wanted an air conditioner that was easy to run. This air conditioner is all of the above!"

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    Product Description

    Take control of your indoor climate with the LG LW1821ERSM Window Air Conditioner! Experience optimal cooling for large rooms up to 1,000 sq ft with 3 cooling and fan speeds, a 24-hour timer, and 4-way air deflection for complete customization. The unit's revolutionary LG ThinQ technology lets you cool your home remotely via your smartphone, Amazon Alexa, or Hey Google. This ultra-quiet, high-efficiency unit provides top-notch performance while consuming minimum power. Additional features include an automatic restart function after power outages, a remote control, an easy installation kit, a slide-out washable filter, and a check filter alert, ensuring effortless maintenance and a seamless cooling experience.
    See all Window Air Conditioners
    Top comment

    "Great air conditioner...I wanted an air conditioner that was easy to run. This air conditioner is all of the above!"

    See all customer reviews

    Product Description

    Take control of your indoor climate with the LG LW1821ERSM Window Air Conditioner! Experience optimal cooling for large rooms up to 1,000 sq ft with 3 cooling and fan speeds, a 24-hour timer, and 4-way air deflection for complete customization. The unit's revolutionary LG ThinQ technology lets you cool your home remotely via your smartphone, Amazon Alexa, or Hey Google. This ultra-quiet, high-efficiency unit provides top-notch performance while consuming minimum power. Additional features include an automatic restart function after power outages, a remote control, an easy installation kit, a slide-out washable filter, and a check filter alert, ensuring effortless maintenance and a seamless cooling experience.
    See all Window Air Conditioners
    See all Window Air Conditioners
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