Finding the perfect air conditioner for a small apartment can significantly enhance comfort, especially during hot months. This article reviews some of the best small apartment air conditioners suitable for various room sizes up to 450 sq. ft. Below is a summary table highlighting key features of the top models to help you decide quickly.
Product | Cooling Capacity (BTU) | Room Size Coverage | Type | Special Features |
---|---|---|---|---|
GE Window Air Conditioner Unit | 5,000 | Up to 150 sq ft | Window | Manual controls, low noise, easy install kit |
Midea 5,000 BTU EasyCool Window AC | 5,000 | Up to 150 sq ft | Window | Energy efficient, mechanical controls, reusable filter |
EUHOMY 8,000 BTU Portable Air Conditioner | 8,000 | Up to 350 sq ft | Portable | 3-in-1: cool, dry, fan; remote; quiet operation |
BLACK+DECKER 10,000 BTU Portable AC | 10,000 | Up to 450 sq ft | Portable | Remote control, dehumidifier, washable filter |
Feelfunn 8,000 BTU Portable Air Conditioner | 8,000 | Up to 350 sq ft | Portable | Digital control panel, 3-in-1 functions, low noise |
GE Window Air Conditioner Unit, 5,000 BTU for Small Rooms

The GE 5,000 BTU window air conditioner is designed specifically for small rooms up to 150 sq ft, ideal for bedrooms, studios, or small living rooms. It features a mechanical control system that is easy to use with manual adjustable fan and cooling settings. The built-in install kit facilitates quick setup without professional help. This unit operates with low noise, making it suitable for nighttime cooling without disturbing your sleep.
Midea 5,000 BTU EasyCool Small Window Air Conditioner

The Midea EasyCool 5,000 BTU window AC efficiently cools rooms up to 150 sq ft using R410A refrigerant and copper core material for durability and improved airflow. It includes seven temperature settings and two cooling speeds to adapt to your comfort needs. Notably, this unit has a CEER of 11.0, emphasizing energy efficiency that helps cut down electricity costs. Plus, a reusable and removable filter makes maintenance simple.
EUHOMY 8000 Btu Portable Air Conditioners, 3 in 1 Unit

The EUHOMY 8,000 BTU portable air conditioner offers versatile cooling for spaces up to 350 sq ft. It features three modes: cooling, dehumidifying, and fan-only, controlled via a remote. This unit operates quietly and efficiently cools a room within minutes. Its compact design includes universal wheels for portability, plus a washable filter. The dry mode can remove up to 44 pints of moisture, making it ideal for humid conditions.
BLACK+DECKER 10,000 BTU Portable Air Conditioner with Remote

The BLACK+DECKER 10,000 BTU portable AC serves rooms up to 450 sq ft with powerful cooling. It provides three functions: air conditioning, dehumidifying, and fan. Operated via a remote control or top-mounted panel, this unit includes a washable slide-out filter and automatic water evaporation system. Its 24-hour timer and quiet performance make it a dependable choice for bedroom or office use.
Feelfunn 8000 BTU Portable Air Conditioners, 3-in-1 Unit

The Feelfunn 8,000 BTU portable air conditioner is designed to cool areas up to 350 sq ft, providing rapid cooling within 6 minutes. It offers three modes — cool, dehumidify, and fan — with a moisture removal capacity of up to 52 pints daily. Featuring a digital control panel alongside a remote, it ensures convenient operation. The unit boasts quiet operation below 48 dB and a CEER of 6.3, promoting energy savings.
Buying Guide for Small Apartment Air Conditioners
Selecting the right air conditioner for a small apartment involves assessing several important factors to ensure optimal cooling, energy savings, and convenience.
1. Cooling Capacity (BTU)
BTU rating indicates how much heat an AC can remove per hour. Small rooms up to 150 sq ft typically need around 5,000 BTU, while spaces closer to 350 sq ft require about 8,000 BTU, and larger small apartments around 450 sq ft may need 10,000 BTU units. Matching BTU to room size maximizes efficiency.
2. Type of Air Conditioner
- Window AC Units: Usually cost-effective and easy to install but require a suitable window.
- Portable ACs: Provide mobility and don’t require permanent installation but can be louder and take up floor space.
3. Noise Level
For apartments, noise is a critical factor. Look for units with quiet operation specifications (e.g., under 50 dB) to maintain a peaceful environment.
4. Energy Efficiency
Check the Energy Efficiency Ratio (EER/CEER) ratings to reduce power consumption and save on bills. Energy Star certified units often provide better savings.
5. Additional Features
- Dehumidifier mode: Helpful in humid climates to maintain comfort.
- Remote control and timers: Offer ease of operation and energy management.
- Reusable filters: Simplify maintenance and reduce replacement costs.
6. Installation and Portability
For renters or those who frequently move, a portable AC with wheels or a window unit with a straightforward installation kit can be advantageous.
7. Room Ventilation and Window Compatibility
Window units require suitable window dimensions and venting capability. Portable units often need a window venting kit to exhaust hot air, so ensure your apartment allows for proper ventilation setup.