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10 Best Room Air Conditioners 2025 in the United States
#1
Winner
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 is a solid choice if you need to cool a small room up to about 150 square feet, such as a bedroom, home office, or small living area. It offers decent cooling with 7 temperature settings and options for fan-only or cooling modes, giving you reasonable control over comfort. The unit has a moderate energy efficiency rating (CEER of 11.0), which helps keep running costs fairly low, although it's not Energy Star certified. Noise-wise, it runs quieter than a household refrigerator at 57 dB, so it won’t be too disruptive during use.
Rating
10.0
Chosen by1,487
Cooling Capacity (BTUs)
Energy Efficiency Ratio (EER)
Noise Level
Most important from
12712 reviews
#2
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
The Frigidaire 5,000 BTU Window-Mounted Air Conditioner is designed to cool rooms up to 250 square feet, making it a good option for small spaces like bedrooms or home offices. One of its notable strengths is its quiet operation, producing noise at just 52 decibels, which is suitable for creating a peaceful environment. Its cooling capacity of 5,000 BTUs is adequate for the specified room size, ensuring effective temperature control without overworking the unit.
Rating
10.0
Cooling Capacity (BTUs)
Noise Level
Installation Type
Most important from
16750 reviews
#3
Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner, Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control
The Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner is designed to cool spaces up to 350 sq. ft., making it suitable for rooms or small apartments. One of its standout features is its ultra-quiet operation, with noise levels as low as 42 dB, which is significantly quieter than many traditional units. This makes it an excellent choice for those who prioritize a peaceful environment.
Rating
9.9
Cooling Capacity (BTUs)
Noise Level
Installation Type
Most important from
11628 reviews
Top 10 Best Room Air Conditioners 2025 in the United States
#1
Winner
10.0 score
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 (BTUs): 5000 BTUs
Energy Efficiency Ratio (EER): 11.0
Noise Level: 57 dB
Installation Type: Window
Filter Type: Dust Filter
Chosen by 1487 this week
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 (BTUs): 5,000
Energy Efficiency Ratio (EER): 11
Noise Level: 52 dB
Filter Type: Washable
Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner, Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control
Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner, Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control
Cooling Capacity (BTUs): 8000
Noise Level: 42 dB
Installation Type: Window
Smart Features: SmartHome app, Alexa, Google Assistant
Filter Type: Dust Filter
BLACK+DECKER Smart Portable Air Conditioner with Heat, 14,000 BTU ASHRAE 128 (10,000 BTU DOE) Cooling, 12,000 BTU Heating for Rooms up to 700 Sq. Ft., Follow Me Remote, BPACT14HWT, White
BLACK+DECKER Smart Portable Air Conditioner with Heat, 14,000 BTU ASHRAE 128 (10,000 BTU DOE) Cooling, 12,000 BTU Heating for Rooms up to 700 Sq. Ft., Follow Me Remote, BPACT14HWT, White
Cooling Capacity (BTUs): 14,000 BTU (ASHRAE), 10,000 BTU (DOE)
Noise Level: 54 dB
Installation Type: Portable
Smart Features: Wi-Fi, app control, Alexa, Google Assistant
Senville LETO Series Mini Split Air Conditioner Heat Pump, 12000 BTU 110/120V, Inverter, Works with Alexa, SEER2 20.8, 1 Ton, White
Senville LETO Series Mini Split Air Conditioner Heat Pump, 12000 BTU 110/120V, Inverter, Works with Alexa, SEER2 20.8, 1 Ton, White
Cooling Capacity (BTUs): 12000
Installation Type: Professional installation
Smart Features: Alexa Enabled
Related Products
SereneLife Small Air Conditioner Portable 14,000 BTU with Built-in Dehumidifier - Portable AC unit for rooms up to 650 sq ft - Remote Control, Window Mount Exhaust Kit
SereneLife Small Air Conditioner Portable 14,000 BTU with Built-in Dehumidifier - Portable AC unit for rooms up to 650 sq ft - Remote Control, Window Mount Exhaust Kit
Cooling Capacity (BTUs): 14000
Noise Level: 57 dB
Installation Type: Window mount kit
Smart Features: Remote control, 24-hour timer
Filter Type: Removable filter
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Buying Guide for the Best Room Air Conditioners
Choosing the right room air conditioner can make a significant difference in your comfort and energy bills. The key is to find a unit that fits your specific needs and the size of the room you want to cool. Here are some important specifications to consider when selecting a room air conditioner.Cooling Capacity (BTUs)Cooling capacity, measured in British Thermal Units (BTUs), indicates how much heat an air conditioner can remove from a room per hour. This is crucial because an air conditioner with too low a BTU rating will struggle to cool the room, while one with too high a BTU rating will cool the room too quickly without removing enough humidity, leading to a clammy feeling. To navigate this, consider the size of your room: for a small room (100-300 sq. ft.), 5,000-7,000 BTUs is usually sufficient; for a medium room (300-500 sq. ft.), 8,000-12,000 BTUs is appropriate; and for a large room (500-800 sq. ft.), 14,000-18,000 BTUs may be needed. Match the BTU rating to your room size for optimal comfort.
Energy Efficiency Ratio (EER)The Energy Efficiency Ratio (EER) measures how efficiently an air conditioner uses energy to cool a room. A higher EER means better energy efficiency, which can lead to lower electricity bills. EER is calculated by dividing the BTUs by the power consumption in watts. Look for units with an EER of 10 or higher for good efficiency. If you prioritize energy savings and environmental impact, choose a model with a higher EER.
Noise LevelNoise level is an important consideration, especially if the air conditioner will be used in a bedroom or living area. Noise levels are measured in decibels (dB). Units with a noise level of 50 dB or lower are considered quiet and are suitable for bedrooms. For living rooms or other areas where noise is less of a concern, units with noise levels up to 60 dB may be acceptable. Consider where you will place the air conditioner and choose a noise level that will not disrupt your activities or sleep.
Installation TypeRoom air conditioners come in different installation types, including window-mounted, wall-mounted, and portable units. Window-mounted units are the most common and are easy to install in a standard window frame. Wall-mounted units require a more permanent installation but do not obstruct the window. Portable units can be moved from room to room but require a venting kit to expel hot air. Choose the installation type that best fits your living situation and preferences.
Smart FeaturesMany modern air conditioners come with smart features such as Wi-Fi connectivity, remote control, and programmable timers. These features allow you to control the unit remotely, set schedules, and optimize energy use. If you value convenience and want to integrate your air conditioner with other smart home devices, look for models with these advanced features. However, if you prefer simplicity, a basic model without smart features may be sufficient.
Filter TypeThe type of filter used in an air conditioner affects air quality and maintenance. Washable and reusable filters are cost-effective and environmentally friendly, as they can be cleaned and reused multiple times. Disposable filters need to be replaced regularly but may offer better filtration for allergens and dust. If you have allergies or respiratory issues, consider a unit with a high-quality filter that can capture fine particles. Otherwise, a washable filter may be more convenient and economical.