Best Coolech 3.2-gal Water Tank for Windowless Air Conditioner in 2025
Updated on July 2025
#1
Recommended
10% Off
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- 4-in-1 functionality provides fan, humidifier, and air cooler capabilities for customizable cooling in dry regions.
- Smart low water alert ensures continuous operation and switches to Natural Mode to protect the motor when water is low.
- Four modes and four speeds create 16 customizable settings with a significant air supply distance for effective cooling.
- Advanced cooling technology offers high airflow, greatly reducing ambient temperature when ice packs are used.
- No assembly required and energy-efficient design can save on electricity bills, providing an affordable cooling solution.
- 3.2-gallon tank allows for extended use with easy monitoring and maintenance.
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- 4-in-1 functionality provides fan, humidifier, and air cooler capabilities for customizable cooling in dry regions.
- Smart low water alert ensures continuous operation and switches to Natural Mode to protect the motor when water is low.
- Four modes and four speeds create 16 customizable settings with a significant air supply distance for effective cooling.
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#2
Value for Money
15% Off
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- 3-in-1 functionality as a fan, humidifier, and air cooler, adding moisture to the air for comfort in dry environments.
- Waterless alert system prevents damage by notifying users when the water level is low; automatic switch to Natural Wind Mode ensures continuous comfort.
- Four modes (Normal, Natural, Sleep, Cooling) and three speeds (Low, Medium, High) create twelve customizable cooling options with a maximum airflow of 22ft/s.
- Utilizes advanced cooling technology that can lower ambient temperatures by 36-49°F using an innovative air duct design and high-density cooling pad.
- Includes a 12-hour timer for energy-saving operation and ultra-quiet performance at 40 dB for undisturbed relaxation or sleep.
- Large 2.4-gallon water tank for 20 hours of continuous cooling with easy maintenance and a visible water level indicator.
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- 3-in-1 functionality as a fan, humidifier, and air cooler, adding moisture to the air for comfort in dry environments.
- Waterless alert system prevents damage by notifying users when the water level is low; automatic switch to Natural Wind Mode ensures continuous comfort.
- Four modes (Normal, Natural, Sleep, Cooling) and three speeds (Low, Medium, High) create twelve customizable cooling options with a maximum airflow of 22ft/s.
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#3
15% Off
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- Max cooling capability for areas up to 320 sq.ft, suitable for various spaces like bedrooms and offices.
- Offers 4 cooling modes and 3 adjustable fan speeds for personalized comfort.
- Designed for energy efficiency, utilizing an advanced evaporative cooling system to lower indoor temperatures effectively while filtering dust.
- Features a 12-hour timer, operates quietly at 46-56 dB, and includes a user-friendly control panel and remote for convenience.
- Ventless and easy to use with a 2-gallon water tank, eliminates installation hassles and is energy-efficient with low power consumption.
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- Max cooling capability for areas up to 320 sq.ft, suitable for various spaces like bedrooms and offices.
- Offers 4 cooling modes and 3 adjustable fan speeds for personalized comfort.
- Designed for energy efficiency, utilizing an advanced evaporative cooling system to lower indoor temperatures effectively while filtering dust.
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#4
33% Off
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- 4-in-1 functionality as a fan, humidifier, and air cooler for dry regions.
- Smart low water alert system ensures continuous cooling and protects the motor.
- Multiple modes and speeds provide 16 customizable settings for effective cooling.
- Advanced cooling technology delivers high airflow and rapid temperature reduction under various humidity conditions.
- Energy-efficient and easy setup without assembly, reducing electricity costs.
- Large water tank allows for 24 hours of cooling with easy monitoring and maintenance.
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- 4-in-1 functionality as a fan, humidifier, and air cooler for dry regions.
- Smart low water alert system ensures continuous cooling and protects the motor.
- Multiple modes and speeds provide 16 customizable settings for effective cooling.
- Advanced cooling technology delivers high airflow and rapid temperature reduction under various humidity conditions.
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#5
10% Off
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- Four modes and three speeds provide custom airflow: Low (13ft/s), Medium (18ft/s), High (25ft/s).
- Functions as a fan, humidifier, and air cooler with adjustable settings for ventilation, humidity relief, and cooling effects.
- 90° oscillation with 1320 CFM airflow efficiently cools areas up to 300 sq. ft.
- 1-gallon tank supports 15 hours of cooling while reducing indoor dryness; visible water level for easy monitoring.
- Advanced technology reduces temperatures by 36-50°F; optimal results with added ice packs.
- Plug-and-play design requires no installation; operates quietly at 80W for energy efficiency.
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- Four modes and three speeds provide custom airflow: Low (13ft/s), Medium (18ft/s), High (25ft/s).
- Functions as a fan, humidifier, and air cooler with adjustable settings for ventilation, humidity relief, and cooling effects.
- 90° oscillation with 1320 CFM airflow efficiently cools areas up to 300 sq. ft.
- 1-gallon tank supports 15 hours of cooling while reducing indoor dryness; visible water level for easy monitoring.
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#6
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- 3-in-1 Evaporative Air Cooler with cooling, humidifying, and air blowing functions; consumes up to 90% less energy than traditional ACs, making it suitable for dry, low-humidity environments.
- Fast and efficient cooling via evaporative technology, featuring 4 ice packs for improved cooling; a 5.3-gallon water tank allows for continuous operation without frequent refills and 120° oscillation for even air distribution.
- User-friendly operation with touch panel and remote control; offers 3 fan speeds and 3 operating modes with a 12-hour auto-off timer; operates quietly at 25 dB for comfortable sleeping conditions.
- Lightweight design at 13 pounds with built-in handle and 360° caster wheels for easy mobility between rooms like the bedroom, living room, and kitchen.
- High-efficiency Uthfy copper motor provides superior performance, reduced noise, and extended longevity compared to traditional motors.
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- 3-in-1 Evaporative Air Cooler with cooling, humidifying, and air blowing functions; consumes up to 90% less energy than traditional ACs, making it suitable for dry, low-humidity environments.
- Fast and efficient cooling via evaporative technology, featuring 4 ice packs for improved cooling; a 5.3-gallon water tank allows for continuous operation without frequent refills and 120° oscillation for even air distribution.
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#7
34% Off
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- 4 modes and 3 speeds allow for customizable airflow with a reach of up to 22 ft.
- Functions as a fan, humidifier, and air cooler, improving ventilation and air humidity.
- 90° oscillation effectively cools areas up to 300 sq. ft. with powerful airflow.
- 1-gallon water tank provides up to 15 hours of continuous cooling with visible water level.
- Advanced cooling technology reduces temperature by 36-50°F using high-performance components.
- Quiet operation with a 12-hour timer ensures convenience during use.
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- 4 modes and 3 speeds allow for customizable airflow with a reach of up to 22 ft.
- Functions as a fan, humidifier, and air cooler, improving ventilation and air humidity.
- 90° oscillation effectively cools areas up to 300 sq. ft. with powerful airflow.
- 1-gallon water tank provides up to 15 hours of continuous cooling with visible water level.
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#8
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- 【3-IN-1 Portable Air Conditioner】: Our air conditioner can combine the three functions of fan, air conditioner, and humidifier into one. The fan of the air conditioner also has different wind 6 speeds that you can adjust according to your environment. The air conditioner mode and fan mode can be used together to reduce the temperature and circulate air, which is a necessity in summer. Use different functions of the air conditioner in different situations to give you a perfect experience.
- 【Advanced Cooling Technology & With 10L Water Tank】: The air cooler adopts the latest cooling technology of 2025，Equipped with a high-performance motor and dense cooling pad, it uses an advanced evaporative cooling system. achieving the cooling effect by adding ice cubes to the water tank of the air cooler. This air cooler has an extra-large 10L(2.64-Gal) water tank to provide cooling for a long time. It absorbs heat through water evaporation to deliver instant cool air, Adding ice can further enhance cooling efficiency, reducing the temperature by 5–16°F, quickly reduce the ambient temperature.
- 【Power Wind & Multiple settings & Large-Scale Cooling】: Our portable air conditioner features a 60° wide swing design, 6 Speeds & 3 Modes, allowing you to enjoy cool air in all directions. The portable air conditioners release cool air over long distances, and the outlet angle can be easily adjusted to suit your needs. The portable air conditioners have a cooling range of up to 26 feet, allowing you to feel cool even from a distance. Keep your room, basement, attic, or office from being too hot this summer with this air cooler.
- 【1-12 Hours Timer & Super Silent】: The portable AC with a timer function of 1-12 hours, allows you to enjoy it at any time without worries. The timing function of the portable AC allows you to freely choose the time you need, saving unnecessary energy consumption and hazards. The portable AC operates at 36 decibels, allowing you to enjoy long-lasting work, and sleep without any noise. Enjoy the breeze brought by the portable AC while sleeping and reduce the risk of catching a cold from overuse.
- 【Quick Cooling & Energy Saving】: The portable air conditioner is suitable for rooms up to 26 square feet and provides you with stable/fast/effective cooling. The portable air conditioner quickly releases cold air within 3s after it is turned on, cooling the room quickly. Our air conditioner is designed to consume less electricity, using only 45W of power. Reduce electricity usage by up to 80%, helping to save energy and reduce electricity bills, making the air conditioner ideal for many homes.
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- 【3-IN-1 Portable Air Conditioner】: Our air conditioner can combine the three functions of fan, air conditioner, and humidifier into one. The fan of the air conditioner also has different wind 6 speeds that you can adjust according to your environment. The air conditioner mode and fan mode can be used together to reduce the temperature and circulate air, which is a necessity in summer. Use different functions of the air conditioner in different situations to give you a perfect experience.
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#9
31% Off
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- ❄【𝟒 𝐌𝐨𝐝𝐞𝐬 & 𝟑 𝐒𝐩𝐞𝐞𝐝𝐬 𝐟𝐨𝐫 𝐂𝐮𝐬𝐭𝐨𝐦𝐢𝐳𝐢𝐧𝐠 𝐘𝐨𝐮𝐫 𝐂𝐥𝐢𝐦𝐚𝐭𝐞】With 3 wind speeds (low-13ft/s, medium-18ft/s, and high-22ft/s), our evaporative air cooler delivers an airflow distance at up to 22 ft/s. Choose from 4 modes (Cooling/Normal/Sleep/Nature): Normal for daily use, Sleep for restful nights, and Cooling for a powerful cooling effect on hot days. Beat the heat effortlessly and enjoy a cool, comfortable living space with the COOLECH swamp cooler!
- ❄【𝟑 𝐈𝐍 𝟏 𝐚𝐬 𝐅𝐚𝐧, 𝐀𝐢𝐫 𝐂𝐨𝐨𝐥𝐞𝐫 & 𝐇𝐮𝐦𝐢𝐝𝐢𝐟𝐢𝐞𝐫 】This air cooler for room works as a fan, humidifier, and air cooler in a sleek design. 1) Fan: Delivers powerful airflow for ventilation. 2) Humidifier (add water): Combats dryness, improving air humidity and relieving dry skin. 3) Air Cooler (add water and ice packs): Uses evaporation to create a cooling environment, perfect for hot days. The COOLECH 3-in-1 evaporative air cooler adapts seamlessly to your needs.
- ❄【𝟗𝟎° 𝐎𝐬𝐜𝐢𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐂𝐨𝐯𝐞𝐫𝐬 𝐮𝐩 𝐭𝐨 𝟑𝟎𝟎 𝐬𝐪. 𝐟𝐭】Boasting 17.7-inch air outlets and a 90° auto-oscillation range, this 42-inch swamp cooler air conditioner delivers even cooling airflow to the room. with a powerful airflow of up to 1320 CFM and 22ft air throw distance, COOLECH portable swamp cooler can quickly cool room areas up to 300 sq. ft, allowing you to enjoy a cooling breeze even from a considerable distance.
- ❄【𝟏𝟓𝐇 𝐂𝐨𝐧𝐭𝐢𝐧𝐮𝐨𝐮𝐬 𝐂𝐨𝐨𝐥𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝟏-𝐆𝐚𝐥 𝐖𝐚𝐭𝐞𝐫 𝐓𝐚𝐧𝐤】Enjoy efficient cooling with our portable swamp cooler indoor. Equipped with a large 1-gallon water tank and 4 upgraded ice packs, it offers up to 15 hours of continuous cooling without frequent refills; reduces indoor dryness by 35%, ensuring a comfortable environment. Plus, with the visible water level, you can monitor the water tank easily and refill it when needed. (Data collected during low-speed tests.)
- ❄【𝟐𝟎𝟐𝟓 𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐂𝐨𝐨𝐥𝐢𝐧𝐠 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲】COOLECH's upgraded air cooler for room features the 2025 latest cooling technology: high-performance motor, innovative air duct design, and 3 high-density cooling pads. Quickly reduces ambient temp by 36-50°F by converting water into a cool mist, delivering a cooling airflow. Tip: Enhance the cooling effect by adding frozen ice packs to the water tank. (*Tested at 95°F in the lab, the cooling effect varies based on indoor humidity.)
- 【𝐍𝐨 𝐇𝐨𝐬𝐞 & 𝐖𝐢𝐧𝐝𝐨𝐰 𝐍𝐞𝐞𝐝𝐞𝐝, 𝐏𝐥𝐮𝐠 𝐚𝐧𝐝 𝐏𝐥𝐚𝐲】No hoses, no windows needed, the COOLECH windowless air conditioner is plug and play—enjoy instant cooling while significantly reducing installation and maintenance costs. The cleanable and detachable cooling pad simplifies upkeep. Unlike traditional wall-mounted air conditioners, our hoseless portable air conditioner operates at just 80W, reducing electricity consumption by up to 65% while maintaining optimal comfort.
- ❄【𝐒𝐦𝐚𝐫𝐭 𝐋𝐄𝐃 𝐓𝐨𝐮𝐜𝐡 𝐃𝐢𝐬𝐩𝐥𝐚𝐲 & 𝐑𝐞𝐦𝐨𝐭𝐞 𝐂𝐨𝐧𝐭𝐫𝐨𝐥】Choose between 2 control options: the LED touch control or the remote control, our evaporative cooler is designed for ultimate convenience. The intuitive LED display allows for easy adjustments and real-time monitoring. Enjoy convenient remote operation up to 20 ft, ensuring effortless comfort. Whether you're relaxing or preparing for bed, the remote control puts climate comfort right at your fingertips.
- ❄【𝐒𝐦𝐚𝐫𝐭 𝟏𝟐-𝐇𝐨𝐮𝐫 𝐓𝐢𝐦𝐞𝐫 & 𝐔𝐥𝐭𝐫𝐚-𝐐𝐮𝐢𝐞𝐭 𝐚𝐭 𝟓𝟎𝐝𝐁】】With the 12 hours timer, this air cooler will auto-shut off after the preset duration, ensuring convenience and peace of mind. Thanks to the sleep mode, you can enjoy a cooling breeze while sleeping and save electricity bills. Operation at a mere 50 dB, our swamp cooler allows you to focus on work, stay relaxed, or peaceful sleep. COOLECH room air conditioners portable - smarter, and less energy.
- ❄【𝐄𝐚𝐬𝐲 𝐭𝐨 𝐂𝐥𝐞𝐚𝐧 & 𝐄𝐧𝐡𝐚𝐧𝐜𝐞𝐝 𝐒𝐚𝐟𝐞𝐭𝐲】The COOLECH portable swamp coolers are designed with user convenience and cost-saving in mind. The removable cooling pad and a rear grill make cleaning easy and help reduce maintenance costs. It also features pinch-proof grills, a fused plug, and built-in circuit protection for added safety. The built-in handle for easy portability, and a non-tip base for added stability.
- 【𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐖𝐢𝐥𝐥 𝐆𝐞𝐭】Package List: 1 x Evaporative Air Cooler for Room; 4 x Upgraded Ice Packs; 1x Remote Control (battery included); 1 Non-tip Base; 1x User Manual. If you have any issues with the product, contact us anytime via Amazon or manual instructions. You Will Get the Best Solution within 24 Hours. (You'll enjoy a 𝟏-𝐲𝐞𝐚𝐫 𝐰𝐚𝐫𝐫𝐚𝐧𝐭𝐢 from the date of purchase, covering manufacturing defects only)
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- ❄【𝟒 𝐌𝐨𝐝𝐞𝐬 & 𝟑 𝐒𝐩𝐞𝐞𝐝𝐬 𝐟𝐨𝐫 𝐂𝐮𝐬𝐭𝐨𝐦𝐢𝐳𝐢𝐧𝐠 𝐘𝐨𝐮𝐫 𝐂𝐥𝐢𝐦𝐚𝐭𝐞】With 3 wind speeds (low-13ft/s, medium-18ft/s, and high-22ft/s), our evaporative air cooler delivers an airflow distance at up to 22 ft/s. Choose from 4 modes (Cooling/Normal/Sleep/Nature): Normal for daily use, Sleep for restful nights, and Cooling for a powerful cooling effect on hot days. Beat the heat effortlessly and enjoy a cool, comfortable living space with the COOLECH swamp cooler!
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#10
7% Off
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- Portable air conditioner with 3 in 1 functionality: fan, humidifier, and air cooler.
- Features 3 adjustable modes (Natural Wind, Low Cool Mist, Cool Mist) and 4 wind speeds.
- 550ml water tank provides 4-8 hours of cooling, with a water level window for easy monitoring.
- Noise level of 55dB ensures a quiet operation suitable for work and sleep; includes 7 color LED lights to enhance relaxation.
- Lightweight and portable design ideal for small spaces, offering energy-efficient cooling for daily use.
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- Portable air conditioner with 3 in 1 functionality: fan, humidifier, and air cooler.
- Features 3 adjustable modes (Natural Wind, Low Cool Mist, Cool Mist) and 4 wind speeds.
- 550ml water tank provides 4-8 hours of cooling, with a water level window for easy monitoring.
- Noise level of 55dB ensures a quiet operation suitable for work and sleep; includes 7 color LED lights to enhance relaxation.
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![Gasbye Dual Hose Portable Air Conditioner, [2025 Upgraded] Full DC Inverter Compressor, Energy-Saving 13.6 CEER, Low Noise (45dB), Cools Room up to 500 Sq.Ft., Backlit Remote Control, 14,000BTU, Black](https://m.media-amazon.com/images/I/41DR9LjHOxL._SL106_.jpg)
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![Gasbye Dual Hose Portable Air Conditioner, [2025 Upgraded] Full DC Inverter Compressor, Energy-Saving 13.6 CEER, Low Noise (45dB), Cools Room up to 500 Sq.Ft., Backlit Remote Control, 14,000BTU, Black](https://m.media-amazon.com/images/I/41DR9LjHOxL._SL320_.jpg)
![Gasbye Dual Hose Portable Air Conditioner, [2025 Upgraded] Full DC Inverter Compressor, Energy-Saving 13.6 CEER, Low Noise (45dB), Cools Room up to 500 Sq.Ft., Backlit Remote Control, 14,000BTU, Black](https://m.media-amazon.com/images/I/51WS1OyQuuL._SL320_.jpg)
![Gasbye Dual Hose Portable Air Conditioner, [2025 Upgraded] Full DC Inverter Compressor, Energy-Saving 13.6 CEER, Low Noise (45dB), Cools Room up to 500 Sq.Ft., Backlit Remote Control, 14,000BTU, Black](https://m.media-amazon.com/images/I/51UZ74DARDL._SL320_.jpg)
![Gasbye Dual Hose Portable Air Conditioner, [2025 Upgraded] Full DC Inverter Compressor, Energy-Saving 13.6 CEER, Low Noise (45dB), Cools Room up to 500 Sq.Ft., Backlit Remote Control, 14,000BTU, Black](https://m.media-amazon.com/images/I/51fT8EGhBRL._SL320_.jpg)
