Portable air conditioners that require adding water offer a convenient and energy-efficient way to stay cool in small spaces. These compact devices use evaporative cooling technology, often combining fan, humidifier, and aromatherapy features. They are perfect for bedrooms, offices, camping, and more. Below is a summary table of top-rated portable air conditioners with water tanks, followed by detailed reviews to help you choose the right model for your needs.
Product | Brand | Water Tank Capacity | Key Features | Link |
---|---|---|---|---|
Portable Air Conditioner – Rechargeable Personal AC Unit Evaporative Air Cooler | CleanKeepers | Not specified | Rechargeable, 4-in-1 functions, 3 speeds, timer, aromatherapy | View on Amazon |
Portable Air Conditioner, Cooling Fan with 3 Speeds & 3 Modes | JOUJBAIL | 1000ml | Remote control, large water tank, ultra-quiet, 4-in-1 design | View on Amazon |
Portable Air Conditioners with 1500ML Water Tank | NPOCLK | 1500ml | 2 spray ports, 3 wind speeds, remote & panel control, colorful lights | View on Amazon |
Portable Air Conditioner with Ultrasonic Nozzles and Timer | vidihill | 1000ml | 3-in-1 fan, cooler & humidifier, top fill water tank, remote & panel control | View on Amazon |
Portable Air Conditioners, Instant Cooling Mini Air Conditioner | MiKoSoRu | Not specified | Instant cooling with ice water, aroma tray, 3 speeds, timer, 7 colors light | View on Amazon |
Portable Air Conditioner – Rechargeable Personal AC Unit

The CleanKeepers Portable Air Conditioner offers a cordless, rechargeable design that enhances true portability, allowing use anywhere without access to power outlets. Its built-in battery can be charged via USB-C from devices such as power banks or laptops. This 4-in-1 unit functions as a cooling fan, evaporative cooler, humidifier, and aromatherapy diffuser.
Users can choose from three adjustable fan speeds, two auto timers (2H/4H), and 60° directional airflow. The evaporative cooling effect activates by adding water or ice cubes, while the aroma diffuser mode uses an essential oil tray to spread fragrance. Operating quietly at 45dB makes this device suitable for bedrooms or offices without noise disturbance.
Portable Air Conditioner Cooling Fan with 1000ml Water Tank

The JOUJBAIL Portable Air Conditioner includes a 1000ml open water tank that facilitates easy filling and cleaning. Its design ensures safety as it has no exposed blades, making it child- and pet-friendly. This 4-in-1 multifunctional device works as a mini air conditioner, fan, humidifier, and nightlight.
It features three wind speeds and spray modes controllable via remote, along with a USB-C charging port. The shutter’s blowing direction is manually adjustable, allowing creation of a personalized cooling zone. Its ultra-quiet technology ensures it won’t interfere with work or sleep, and the compact size fits desks or nightstands conveniently.
Portable Air Conditioners with Large 1500ML Water Tank

The NPOCLK Portable Air Conditioner boasts a large 1500ml water tank that can provide 6-8 hours of cooling, reducing the need for frequent refills. It offers dual mist spray ports to intensify cool air. The unit can switch to a natural wind mode automatically when water runs out.
Control is user-friendly with both panel and remote options. The device supports three wind speeds and also includes 10 colorful lighting settings. This portable AC unit is designed to be effective in various environments such as rooms, camping spots, cars, and offices.
3-in-1 Portable Air Conditioner with Ultrasonic Nozzles

The vidihill Portable Air Conditioner combines fan, cooler, and humidifier functions in a compact design. It operates in fan mode without water and activates cooler mode by adding water and ice. The humidifier mode ensures comfort by alleviating dryness.
This model features a 1000ml top-fill water tank with visual water level monitoring, simplifying maintenance. Both touch panel and remote controls are included for intuitive use. The kit comes with power adapter and cable, requiring 5V/2A power source for optimal operation.
Instant Cooling Mini Air Conditioner with Aromatherapy Tray

The MiKoSoRu Instant Cooling Mini Air Conditioner delivers fast cooling by filling its tank with ice water. It combines powerful airflow with moisture release for a refreshing breeze, which is ideal for hot conditions requiring immediate relief.
An integrated aroma tray allows users to add essential oils, enhancing the cooling experience with soothing scents. The device includes features such as three wind speeds, timer, and seven color-changing lights, making it a versatile personal cooling unit.
Buying Guide for Portable Air Conditioners With Water Tanks
When selecting a portable air conditioner that requires adding water, several key criteria should be considered to ensure the best fit for your cooling needs.
Water Tank Capacity and Refilling Convenience
Water tank size directly impacts how long the unit can run before needing a refill. Tanks typically range from 900ml to 1500ml. Larger tanks offer extended runtime but may increase the unit’s size. Top-fill designs simplify refills, while open tanks are easier to clean.
Cooling Functions and Modes
Most models provide multiple modes: fan-only for air circulation, evaporative cooling by adding water and/or ice, and humidifying functions to add moisture. Some also offer aromatherapy trays for scent diffusion, enhancing the overall experience.
Portability and Power Source
Look for cordless, rechargeable models for maximum portability, especially if you intend to use the device outdoors or in areas without outlets. USB-C charging is common and versatile. For stationary use, devices powered by USB or wall adapters are convenient.
Control Options and Additional Features
Remote controls allow effortless adjustments from a distance, enhancing usability. Adjustable fan speeds, timer settings, and directional airflow improve comfort customization. Additional features like LED night lights or colorful displays may suit bedroom or office environments.
Noise Levels and Safety
Low noise operation is important for sleeping or working environments. Look for models with noise levels under 50dB. Safety is also critical—units without exposed blades prevent accidents, especially around children and pets.
Size and Placement
Consider the physical size and weight relative to your intended usage area. Compact designs fit desks, nightstands, or small rooms, while larger units may be better for bigger spaces or longer run times.
Reviewing these factors will help you select the best portable air conditioner with water tank capacity that meets your cooling needs efficiently and safely.