Finding a cheap small air conditioner that effectively cools your space without a high price tag can be challenging. This guide highlights reliable and affordable options ideal for small rooms, bedrooms, and office spaces. Below is a quick overview of the best models selected for their cooling capacity, portability, and user-friendly features.
Product | Brand | Type | Cooling Features | Portability | Link |
---|---|---|---|---|---|
GE Window Air Conditioner Unit, 5,000 BTU | GE | Window AC | 5000 BTU for up to 150 sq ft, manual fan settings | Fixed window unit, easy install kit included | View on Amazon |
Portable Air Conditioners, 1200ML Cooling Fan Mini AC | AJVV | Portable Evaporative Cooler | 3 mist humidification holes, 3 wind speeds & modes | Compact, USB-powered, handheld design | View on Amazon |
Portable Air Conditioner, Cooling Fan with 3 Speeds | Viemon | Portable Evaporative Cooler | 4-in-1: cooler, fan, humidifier, mist, 900mL tank | Compact, timer included | View on Amazon |
Portable Air Conditioner – Rechargeable Personal AC Unit | CleanKeepers | Cordless Portable Evaporative Cooler | 4-in-1 with aromatherapy, 3 speeds, USB-C rechargeable | Rechargeable battery, cordless use | View on Amazon |
Portable Air Conditioners, Mini Air Conditioner Portable | WUEZOE | Portable Evaporative Cooler | 3 mist settings, 3 fan speeds, rapid cooling | USB rechargeable, handle for portability | View on Amazon |
GE Window Air Conditioner Unit, 5,000 BTU for Small Rooms

The GE 5000 BTU Window Air Conditioner is designed to cool small rooms up to 150 square feet effectively. It includes a manual adjustable fan and cooling settings that allow you to customize the airflow. This unit comes with an easy install kit, meaning you can get it operational with minimal effort. Its low-noise operation makes it suitable for bedrooms and living rooms where quiet is preferred. While it is a fixed window model, its compact size and simplicity make it perfect for small spaces needing consistent cooling.
AJVV Portable Air Conditioner with 1200ML Water Tank

This AJVV portable mini air conditioner utilizes evaporative cooling and humidification through three mist outlets, reducing the surrounding temperature significantly. It offers 3 wind speed levels and 3 cooling modes, including natural and cool mist options, giving users customizable comfort. The large 1200ml water tank supports 8-10 hours of continuous cooling, minimizing refills. USB powered, it’s convenient for office desks, bedrooms, or outdoor use, and cold water or ice cubes can be added for enhanced cooling. Its compact design and remote control provide added portability and ease of use.
Viemon Portable Air Conditioner with 900mL Water Tank

The Viemon Portable Air Conditioner is a versatile 4-in-1 cooling device that serves as an air cooler, fan, humidifier, and mist generator. It has a 900ml water tank and dual sponge sticks that sustain moisture release and enhance cooling for 4-6 hours. This unit supports 3 wind speeds and offers a 2 or 4-hour timer, making it suitable for bedtime or work periods. Adjustable blowing direction and energy-saving settings improve personalization for comfort in small rooms or personal spaces like bedrooms and offices.
CleanKeepers Rechargeable Portable Air Conditioner

The CleanKeepers portable AC is a rechargeable, cordless evaporative cooler featuring 4-in-1 functionality including cooling fan, humidifier, and aromatherapy diffuser. Powered via USB-C, it offers true portability, perfect for spaces without direct power outlets. Its whisper-quiet operation and 3 adjustable fan speeds create a customizable user experience. Timers for 2 or 4 hours and 60° adjustable airflow help maintain comfort on the go in bedrooms, offices, or while camping.
WUEZOE Mini Portable Air Conditioner with Remote

The WUEZOE mini air conditioner offers a 4-in-1 design combining a mini AC, fan, humidifier, and night light. It cools rapidly in just 2 seconds using evaporative cooling technology with 3 mist settings and 3 fan speeds. Its ergonomic handle design improves portability, and it includes a USB charging port compatible with multiple power sources. Suitable for home, office, and outdoor use, this model is efficient for quick personal cooling without bulky equipment.
Buying Guide: What to Consider When Choosing a Cheap Small Air Conditioner
- Cooling Capacity (BTU): For small rooms, units around 5,000 BTU are typically sufficient to cool spaces up to 150 sq ft. Larger rooms will require units with higher BTU ratings.
- Type of Unit: Window air conditioners provide strong, consistent cooling but require installation in a window. Portable evaporative coolers are easier to move but work best in dry climates and smaller areas for personal cooling.
- Portability: Consider if you need a fixed or portable unit. Portable models with USB power or rechargeable batteries offer flexibility for different rooms or outdoor use.
- Power Source: Check if the unit requires a standard outlet or USB power. Rechargeable models provide cordless convenience but may have limited run times without recharge.
- Noise Level: Especially important for bedroom or office use. Look for units marketed as low-noise or whisper-quiet.
- Additional Features: Useful extras include remote control, adjustable fan speeds, timers, humidification, and LED night lights which can enhance comfort and functionality.
- Maintenance and Water Tank Size: Evaporative coolers require water and occasional cleaning. Larger water tanks reduce refilling frequency.
- Energy Efficiency: Look for energy-saving features or devices that consume less power for economic and environmental benefits.