2025 Best Energy Efficient Air Conditioners Comparison: Top 10

Energy-efficient window-mounted air conditioner with 7 temperature settings and 2 fan modes.

The Comfort Zone Window AC is a 5,000 BTU air conditioner capable of cooling up to 150 square feet. It features 7 temperature settings, 2 fan modes, and a washable filter for easy maintenance. This energy-efficient appliance is white in color and designed for window mounting.

An energy-efficient, portable, and versatile 3-in-1 air conditioner with a cooling capacity of 8000 BTUs.

The SereneLife Compact Portable AC is an 8000 BTU 3-in-1 air conditioning unit that efficiently cools rooms up to 300 sq. ft. This floor-standing AC comes with a remote control, universal casters for easy mobility, and a window mount kit, making it a versatile solution for maintaining the perfect room temperature.

Energy-efficient, portable air conditioner with cooling, dehumidification, and timer features.

The 3-in-1 Portable AC Unit is an 8000 BTU air conditioner perfect for home and office spaces. It functions as a cooler, dehumidifier, and has a built-in timer, making it energy efficient. The unit also comes with a remote control, offering convenience and easy operation.

Energy-efficient, 5,000 BTU air conditioner perfect for small spaces.

This energy-efficient air conditioner from Midea is designed to cool spaces up to 150 sq. ft., making it perfect for small bedrooms, living rooms, or home offices. It comes with easy-to-use mechanical controls and a reusable filter, and operates at 5,000 BTU.

Portable and energy-efficient air conditioner with cooling, dehumidifying, and fan functions.

The SereneLife 10000 BTU Portable Air Conditioner is a versatile, free-standing unit that offers cooling, dehumidifying and fan modes. With coverage for up to 320 sq. ft., this energy-efficient unit includes a window mount kit and wheels for easy mobility. It is perfect for small apartments, bedrooms, or office spaces.

Versatile and efficient portable air conditioner with 8000 BTU cooling capacity.

The GarveeHome Compact 3-in-1 AC is a versatile 8000 BTU portable air conditioner that doubles as a dehumidifier and has a sleep mode for quiet operation. It's perfect for bedrooms, apartments, and offices with its remote control for ease of operation. The unit's white and black design offers a modern touch to any space.

Evaporative Air Cooler,3-IN-1 Portable Air Conditioners Remote Control, 70° Oscillation Energy Effic

Amazon product: Evaporative Air Cooler,3-IN-1 Portable Air Conditioners Remote Control, 70° Oscillation Energy Efficient Air Cooler for Room Bedroom Home Indoor (New)

Energy efficient, Alexa-compatible mini split air conditioner with a heat pump.

The DELLA Vario Series 9000 BTU Mini Split Air Conditioner is a 115V 19 SEER2 unit that can cool spaces up to 400 sq.ft. It is Alexa-compatible for easy voice-controlled operation, energy efficient, and is equipped with a pre-charged heat pump. The product comes with a 16.4ft installation kit.

Energy-efficient, ultra-quiet, 5000 BTU window AC unit with remote control.

This 5000 BTU window air conditioner is ideal for cooling small spaces up to 150 square feet. It's ultra-quiet, energy-efficient, and comes with a remote control for easy adjustments. The unit is also easy to install, making it perfect for use in bedrooms, offices, and dorms.

Quiet, energy-efficient, 3-in-1 portable air conditioner suitable for rooms up to 350 sq.ft.

This 8000 BTU air conditioner is a versatile 3-in-1 unit, with cooling, dehumidifier and fan functions. It offers quiet operation and energy-saving features, including a sleep mode and a 24-hour timer. The unit is suitable for rooms up to 350 sq.ft and includes a remote control and a reusable filter.