Best Energy Star Certified Window Air Conditioner in 2025
Updated on July 2025
#1
Recommended
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- Advanced inverter technology reduces energy consumption by up to 37.6% compared to traditional units.
- Inverter system provides quiet operation and accurate temperature control for consistent cooling.
- Meets ENERGY STAR standards for high efficiency, aiding in reduced energy costs.
- Quick installation with an easy-to-use window kit; no professional assistance needed.
- Remote control and app compatibility for convenient operation.
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- Advanced inverter technology reduces energy consumption by up to 37.6% compared to traditional units.
- Inverter system provides quiet operation and accurate temperature control for consistent cooling.
- Meets ENERGY STAR standards for high efficiency, aiding in reduced energy costs.
- Quick installation with an easy-to-use window kit; no professional assistance needed.
- Remote control and app compatibility for convenient operation.
#2
Value for Money
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- Efficiently cools rooms up to 250 sq ft.
- Ideal for small spaces such as bedrooms and home offices.
- Operates quietly, suitable for use during the night.
- Offers 3 cooling modes and 3 fan speeds for customizable comfort.
- Simple installation in double hung windows with included kit; features a cleanable slide-out filter.
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- Efficiently cools rooms up to 250 sq ft.
- Ideal for small spaces such as bedrooms and home offices.
- Operates quietly, suitable for use during the night.
- Offers 3 cooling modes and 3 fan speeds for customizable comfort.
- Simple installation in double hung windows with included kit; features a cleanable slide-out filter.
#3
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- Maintains preset room temperatures for all-day comfort
- Features a washable filter that effectively captures dust, enhancing efficiency
- Includes a long power cord, eliminating the need for extension cords
- Automatically resumes previous settings after a power outage
- Suitable for installation in standard double-hung windows with widths ranging from 24 to 36 inches
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- Maintains preset room temperatures for all-day comfort
- Features a washable filter that effectively captures dust, enhancing efficiency
- Includes a long power cord, eliminating the need for extension cords
- Automatically resumes previous settings after a power outage
- Suitable for installation in standard double-hung windows with widths ranging from 24 to 36 inches
#4
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- Three modes: cooling for spaces up to 250 sq. ft., dehumidification, and a 3-speed fan.
- Low noise operation at 52dB in low mode; includes a user-friendly LED display and remote control.
- Simple installation in existing window frames (23"-36" x 14") with all necessary mounting accessories included; a screwdriver is required.
- Midea offers a one-year warranty on parts and labor, highlighting commitment to quality and customer care.
- Energy-efficient features include Eco mode and EasyTimer for customizable scheduling to reduce costs.
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- Three modes: cooling for spaces up to 250 sq. ft., dehumidification, and a 3-speed fan.
- Low noise operation at 52dB in low mode; includes a user-friendly LED display and remote control.
- Simple installation in existing window frames (23"-36" x 14") with all necessary mounting accessories included; a screwdriver is required.
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#5
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- 8000 BTU window air conditioner and heat unit designed for large rooms up to 350 square feet, offering both cooling and supplemental heating capabilities.
- User-friendly with LED display, multiple function modes (Heat, Auto, Cool, Dry, Fan), adjustable airflow louvers, and smart home integration via the SmartHome App, Alexa, and Google Assistant.
- Energy Star certified for efficiency, featuring variable-speed inverter technology that reduces electricity usage by up to 35% and includes a washable filter for easy maintenance.
- Operates at a quiet noise level of 45 dBA, suitable for work, relaxation, and sleep, while providing beneficial white noise.
- Fits double hung windows with openings between 24 to 38.5 inches; includes installation kit and measures 19.41"W x 22.17"D x 13.9"H.
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- 8000 BTU window air conditioner and heat unit designed for large rooms up to 350 square feet, offering both cooling and supplemental heating capabilities.
- User-friendly with LED display, multiple function modes (Heat, Auto, Cool, Dry, Fan), adjustable airflow louvers, and smart home integration via the SmartHome App, Alexa, and Google Assistant.
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#6
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- Reduces noise to 45dB by keeping the compressor outside, allowing for full window views and natural light.
- Rapidly cools spaces up to 550 sq. ft. with a temperature range of 62°F to 86°F and features six modes and three fan speeds.
- Easy installation with no need for brackets, fits windows 24" to 48" wide with a minimum opening of 16".
- Offers cooling, dehumidifying, and fan modes for year-round use, providing comfort in various weather conditions.
- Energy-efficient with annual costs of $67, featuring timer, Energy Saver, and Sleep modes, easily controlled by touch panel or remote.
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- Reduces noise to 45dB by keeping the compressor outside, allowing for full window views and natural light.
- Rapidly cools spaces up to 550 sq. ft. with a temperature range of 62°F to 86°F and features six modes and three fan speeds.
- Easy installation with no need for brackets, fits windows 24" to 48" wide with a minimum opening of 16".
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#7
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- Cools rooms up to 350 sq ft effectively with a straightforward installation kit included.
- Ideal for medium-sized spaces, providing quiet 8000 BTU cooling for areas like living and family rooms.
- SmartHQ app integration allows for remote control, scheduling, and monitoring; compatible with Amazon Alexa and Google Assistant; includes a remote control for convenience.
- Eco Mode helps save energy by automatically turning off the fan and compressor when the room reaches a certain temperature; features 3 cooling modes and 3 fan speeds for customizable comfort.
- Designed for easy installation in double-hung windows and features a slide-out, washable filter for simple maintenance.
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- Cools rooms up to 350 sq ft effectively with a straightforward installation kit included.
- Ideal for medium-sized spaces, providing quiet 8000 BTU cooling for areas like living and family rooms.
- SmartHQ app integration allows for remote control, scheduling, and monitoring; compatible with Amazon Alexa and Google Assistant; includes a remote control for convenience.
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#8
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- Operates quietly at sound levels as low as 52dB, ensuring minimal disruption during use.
- Offers 3 adjustable cooling and fan speeds for personalized comfort.
- Features a user-friendly digital control panel, remote control, and a slide-out washable filter for easy maintenance.
- Automatically restarts after power outages, providing convenience without manual intervention.
- Designed to efficiently cool spaces up to 250 square feet, suitable for medium-sized rooms.
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- Operates quietly at sound levels as low as 52dB, ensuring minimal disruption during use.
- Offers 3 adjustable cooling and fan speeds for personalized comfort.
- Features a user-friendly digital control panel, remote control, and a slide-out washable filter for easy maintenance.
- Automatically restarts after power outages, providing convenience without manual intervention.
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#9
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- Covers up to 150 square feet, making it suitable for small rooms or spaces.
- Operates quietly at sound levels as low as 50dB, with mechanical controls for straightforward operation.
- Fixed chassis design enables easy installation in double-hung windows; includes EZ Mount kit and slide-out filter for simple cleaning.
- Features a washable dust filter that captures airborne dust, ensuring efficient operation of the dehumidifier.
- Offers multiple cooling modes and fan speeds for personalized comfort, along with an energy-saving function to reduce electricity costs.
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- Covers up to 150 square feet, making it suitable for small rooms or spaces.
- Operates quietly at sound levels as low as 50dB, with mechanical controls for straightforward operation.
- Fixed chassis design enables easy installation in double-hung windows; includes EZ Mount kit and slide-out filter for simple cleaning.
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#10
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- Whisper-quiet operation at 42dBA for minimal noise disruption.
- Inverter technology ensures efficient and consistent cooling for stable room temperatures.
- ENERGY STAR Most Efficient designation, providing significant energy savings.
- Wi-Fi enabled for remote cooling control via the Frigidaire app.
- Auto swing louver and multiple fan speeds enhance air circulation and cooling.
- Washable filter with maintenance alert for optimal performance.
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- Whisper-quiet operation at 42dBA for minimal noise disruption.
- Inverter technology ensures efficient and consistent cooling for stable room temperatures.
- ENERGY STAR Most Efficient designation, providing significant energy savings.
- Wi-Fi enabled for remote cooling control via the Frigidaire app.
- Auto swing louver and multiple fan speeds enhance air circulation and cooling.
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