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10 Best Low Wattage Air Conditioners 2025 in the United States
#1
Winner
BLACK+DECKER 10,000 BTU Portable Air Conditioner for Rooms up to 450 Sq. with Remote Control, White
The BLACK+DECKER 10,000 BTU Portable Air Conditioner is designed to cool spaces up to 450 sq. ft., making it suitable for bedrooms or small living areas. Its compact size (15.3” x 14” x 24.8”) and weight (47.3 lbs.) coupled with casters and side handles, make it highly portable and easy to move from room to room.
Rating
9.8
Chosen by1,309
Cooling Capacity (BTU)
Noise Level
Additional Features
Most important from
50458 reviews
#2
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
The Midea MAW12HV1CWT EasyCool Smart Inverter Air Conditioner is a solid choice for those needing a versatile unit that can cool and heat spaces up to 550 square feet. With a 12,000 BTU cooling capacity, it efficiently handles larger rooms. The unit boasts an impressive Energy Efficiency Ratio (EER) of 13.3, which translates to significant energy savings, up to 35% compared to standard models. This makes it economical for long-term use.
Rating
9.6
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level
Most important from
16849 reviews
#3
Midea 5,000 BTU EasyCool Small Window Air Conditioner - Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office
The Midea 5,000 BTU EasyCool Window Air Conditioner is designed to cool small spaces up to 150 square feet, making it a good fit for bedrooms, home offices, or small living rooms. Its cooling capacity is adequate for these compact areas, and the unit offers 7 temperature settings along with 2 fan speeds, allowing for customizable comfort. It operates at about 57 decibels, roughly the sound level of a quiet conversation, so it should be unobtrusive in most rooms. The unit includes easy mechanical controls and a reusable air filter, which simplifies maintenance and adds convenience.
Rating
9.4
Noise Level
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Most important from
16849 reviews
Top 10 Best Low Wattage Air Conditioners 2025 in the United States
#1
Winner
BLACK+DECKER 10,000 BTU Portable Air Conditioner for Rooms up to 450 Sq. with Remote Control, White
BLACK+DECKER 10,000 BTU Portable Air Conditioner for Rooms up to 450 Sq. with Remote Control, White
Cooling Capacity (BTU): 10000
Noise Level: 52 dB
Size and Portability: 15.3” x 14” x 24.8”, 47.3 lbs
Additional Features: 3-in-1: AC/Dehumidifier/Fan, Remote Control
Chosen by 1309 this week
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
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
Cooling Capacity (BTU): 12000
Energy Efficiency Ratio (EER): 13.3
Noise Level: 45 dBA
Size and Portability: 22.17 x 19.41 x 13.9 inches
Additional Features: Inverter Compressor, Remote Controlled, WiFi
Midea 5,000 BTU EasyCool Small Window Air Conditioner - Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office
Midea 5,000 BTU EasyCool Small Window Air Conditioner - Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office
Cooling Capacity (BTU): 5000 British Thermal Units
Energy Efficiency Ratio (EER): 11.0
Noise Level: 57 dB
Size and Portability: 15.35x15.98x12.05 inches, 35.3 lbs
Additional Features: 7 temps, 2 fan speeds, reusable filter
LG 8,000 BTU Window Air Conditioner, 115V, Cools 340 Sq.Ft. for Bedroom, Living Room, Apartment, Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, White
LG 8,000 BTU Window Air Conditioner, 115V, Cools 340 Sq.Ft. for Bedroom, Living Room, Apartment, Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, White
Cooling Capacity (BTU): 8000 BTU
Energy Efficiency Ratio (EER): 13 EER
Noise Level: 53 dB
Size and Portability: 19.6x19.4x12.4 in, 58 lbs, window
Additional Features: remote, 3 fan speeds, auto restart
Frigidaire 5,000 BTU Window-Mounted Air Conditioner, Cools Up to 250 Sq. Ft., Quiet Operation, Effortless Temperature Control, 2 Fan Speeds, Auto Restart, White
Frigidaire 5,000 BTU Window-Mounted Air Conditioner, Cools Up to 250 Sq. Ft., Quiet Operation, Effortless Temperature Control, 2 Fan Speeds, Auto Restart, White
Cooling Capacity (BTU): 5000
Noise Level: 52 dB
Size and Portability: 15.25"D x 16"W x 12"H
Additional Features: Temp Control, Auto Restart, Dust Filter
Related Products
LG 6,000 BTU Window Air Conditioner, Cools 250 Sq.Ft. (10' x 25' Room Size), Quiet Operation, Electronic Control with Remote, 2 Cooling & Fan Speeds, 2-Way Air Deflection, Auto Restart, 115V
LG 6,000 BTU Window Air Conditioner, Cools 250 Sq.Ft. (10' x 25' Room Size), Quiet Operation, Electronic Control with Remote, 2 Cooling & Fan Speeds, 2-Way Air Deflection, Auto Restart, 115V
Cooling Capacity (BTU): 6000 BTU
Energy Efficiency Ratio (EER): 11.5
Noise Level: 52 dB
Size and Portability: Window-mounted, not portable
Additional Features: Remote, Filter Light, Dust Filter, Dehumidifier, Auto restart
Dreo Portable Air Conditioners, 12,000 BTU AC Unit for Bedroom with Drainage-free Cooling, 46dB Quiet, APP/Voice/Remote, 24h Timer with Fan & Dehumidifier, Smart Standing AC for Room Indoors, AC515S
Dreo Portable Air Conditioners, 12,000 BTU AC Unit for Bedroom with Drainage-free Cooling, 46dB Quiet, APP/Voice/Remote, 24h Timer with Fan & Dehumidifier, Smart Standing AC for Room Indoors, AC515S
Cooling Capacity (BTU): 12,000
Noise Level: 46 dB
Size and Portability: 14.37 x 17.32 x 28.13 inches
Additional Features: 3-in-1 mode, Alexa & Google Home
#10
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Buying Guide for the Best Low Wattage Air Conditioners
Choosing the right low-wattage air conditioner can make a significant difference in your comfort and energy bills. Low-wattage air conditioners are designed to consume less power while still providing effective cooling. When selecting the best model for your needs, it's important to consider several key specifications to ensure you get the most efficient and suitable unit for your space.Cooling Capacity (BTU)Cooling capacity, measured in British Thermal Units (BTU), indicates the amount of heat an air conditioner can remove from a room per hour. This spec is crucial because it determines how effectively the unit can cool your space. For small rooms (up to 150 square feet), a unit with 5,000-6,000 BTU is sufficient. Medium-sized rooms (150-300 square feet) require 7,000-8,000 BTU, while larger rooms (300-450 square feet) need 10,000-12,000 BTU. Choose a unit with the appropriate BTU rating for your room size to ensure efficient cooling without wasting energy.
Energy Efficiency Ratio (EER)The Energy Efficiency Ratio (EER) measures the cooling efficiency of an air conditioner. It is calculated by dividing the cooling capacity (BTU) by the power consumption (watts). A higher EER indicates a more efficient unit. For low-wattage air conditioners, look for an EER of 10 or higher. This ensures that the unit provides maximum cooling with minimal energy consumption, which is especially important if you want to keep your electricity bills low.
Noise LevelNoise level, measured in decibels (dB), indicates how loud the air conditioner will be during operation. This is important if you plan to use the unit in a bedroom, office, or any other space where quiet is essential. Low-wattage air conditioners typically have noise levels ranging from 40 to 60 dB. For a quieter environment, choose a unit with a noise level below 50 dB. Consider your tolerance for noise and the location where the air conditioner will be used when making your selection.
Size and PortabilityThe size and portability of an air conditioner are important factors, especially if you have limited space or plan to move the unit between rooms. Compact and lightweight models are easier to install and relocate. Measure the space where you intend to place the air conditioner to ensure it fits comfortably. If portability is a priority, look for units with wheels or handles for easy movement. Consider your space constraints and how often you might need to move the unit when choosing the right size and portability features.
Additional FeaturesAdditional features can enhance the convenience and functionality of your air conditioner. Common features include remote control, programmable timer, sleep mode, and adjustable fan speeds. These features can make it easier to operate the unit and customize the cooling to your preferences. Think about which features are most important to you and how they will improve your overall experience with the air conditioner. For example, a programmable timer can help you save energy by allowing you to set the unit to turn on or off at specific times.