10 Best Energy Efficient Window Air Conditioner 2025 in the United States

1 Our Pick
Frigidaire 10,000 BTU Window AC & Dehumidifier for Rooms up to 450 Sq. Ft.
  • Cools spaces up to 450 square feet, suitable for apartments and small rooms.
  • Includes a remote control for convenient operation from a distance.
  • Programmable timer allows you to set on/off times for energy efficiency.
  • Equipped with sleep mode for quieter operation during the night.
  • Function as a dehumidifier to remove excess moisture from the air.
  • 115V power supply ensures compatibility with standard outlets.
2
Midea 10,000 BTU Smart Inverter Window AC, Cools 450 Sq. Ft., Ultra Quiet
  • Cools spaces up to 450 square feet effectively and quietly.
  • Smart inverter technology for efficient temperature control.
  • Open window flexibility allows for fresh air intake.
  • Compatible with Alexa and Google Assistant for voice control.
  • Offers 35% energy savings compared to traditional units.
  • Includes a remote control for easy operation from a distance.
3
Midea MAW06R1CWT 6,000 BTU EasyCool Window Air Conditioner
  • Cools, circulates, and dehumidifies areas up to 250 sq ft efficiently.
  • Comes with a reusable filter for improved air quality and easy maintenance.
  • Includes an LCD remote control for convenient operation from a distance.
  • Designed for easy installation in most window frames.
  • Compact and energy-efficient model suitable for small rooms.
  • Fan feature allows for air circulation even when cooling is not needed.
4
LG 10,000 BTU Window Air Conditioner with WiFi and Remote Control
  • Cools up to 450 square feet, ideal for medium and large rooms.
  • Includes remote control for convenient operation from anywhere.
  • Compatible with WiFi for easy app control and monitoring.
  • Ultra-quiet operation makes it suitable for sleep and work.
  • Washable filter for hassle-free maintenance and air quality.
  • Easy installation process for quick setup in windows.
5
LG 7,600 BTU Window Air Conditioner with Heat for Rooms Up to 330 Sq.Ft.
  • 7,600 BTU cooling capacity suitable for 330 sq. ft. spaces.
  • Includes heating function for year-round comfort.
  • Remote control for convenient operation from anywhere.
  • Two cooling speeds to customize your comfort level.
  • Slide in-out chassis for easy installation and maintenance.
  • 24-hour timer to schedule cooling and heating efficiently.
6
Frigidaire 12,000 BTU Window Air Conditioner with Remote Control
  • 12,000 BTU cooling capacity suitable for medium to large rooms.
  • 115V power supply, efficient for standard home electrical systems.
  • Compact window-mounted design saves space while cooling efficiently.
  • Includes a remote control for convenient operation from a distance.
  • Easy installation process for quick setup in your window.
  • High score rating of 68.8 reflecting good performance and reliability.
7
LG 10,000 BTU Smart Window Air Conditioner for 450 Sq. Ft. Cooling
  • Cools up to 450 sq. ft., ideal for bedrooms and living rooms.
  • Equipped with Dual Inverter technology for quiet operation.
  • Energy Star certified for improved energy efficiency.
  • Smart features compatible with LG ThinQ, Alexa and Google Home.
  • 115V power supply for standard window installation.
  • Compact design suitable for apartments and small spaces.
8
Mollie 6000 BTU Window Air Conditioner with Remote and Washable Filter
  • Provides cooling for areas up to 250 square feet effectively.
  • Equipped with a washable filter for easy maintenance.
  • Includes a remote control for convenient operation.
  • Functions as a dehumidifier for added comfort.
  • Features multiple fan speeds to customize airflow.
  • Operates on 115V/60Hz electrical standards for compatibility.
9
Frigidaire GHWQ103WC1 10,000 BTU Inverter Quiet Temp AC with Wi-Fi, White
  • 10,000 BTU cooling capacity for effective temperature control.
  • Inverter technology ensures quiet operation and energy efficiency.
  • Wi-Fi connected for remote monitoring and control via smartphone.
  • Energy Star certified for lower electricity consumption and savings.
  • Includes an easy-to-clean washable filter for improved air quality.
  • Stylish white design fits well in various room decors.
10
LG 5000 BTU Window Air Conditioner – Ultra-Quiet & Compact for Small Rooms
  • 5000 BTU cooling power suitable for small rooms up to 150 sq. ft.
  • 2023 model with easy mechanical control for user-friendly operation.
  • Ultra-quiet operation ensures minimal noise disruption.
  • Compact design fits easily in most window spaces.
  • Features a washable filter for easy maintenance and air quality.
  • Simple installation process makes setup quick and hassle-free.

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