1. Setup Instructions
Follow these steps to correctly set up your Coolfiqu 5L Ultrasonic Cool Mist Humidifier for first use.

Image: Step-by-step visual guide for humidifier installation.
- Unpack: Carefully remove all components from the packaging.
- Remove Protective Tape: Locate and tear off any protective tape from the humidifier unit. This tape secures parts during shipping.
- Remove Foam from Base: Before operation, it is crucial to remove the white foam located in the base of the humidifier. This foam protects the nebulizer during transport and must be removed for proper function.
- Assemble Nozzle Cap: Align the nozzle cap with the humidifier cup lid and press them together to assemble. Ensure it is correctly aligned and securely attached. Incorrect alignment will prevent proper mist dispersion.
- Place Cup Lid: After assembly, place the assembled cup lid onto the water tank.
- Placement: Place the humidifier on a flat, stable, and water-resistant surface. Ensure it is away from direct sunlight, heat sources, and electronic devices.
2. Operating Instructions
Learn how to use your Coolfiqu humidifier effectively.
2.1 Filling the Water Tank

Image: Demonstrates the convenient top-fill design for adding water directly to the tank.
- The humidifier features a top-fill design for easy water replenishment.
- Simply pour water directly into the top opening of the tank.
- Do not exceed the maximum water level indicated on the tank (5L capacity).
- Use clean, cool tap water. Distilled or demineralized water is recommended to prevent mineral buildup.
2.2 Power On/Off and Mist Adjustment

Image: Humidifier control panel and display indicating various settings.
- Power: Press the power button on the control panel to turn the humidifier on or off.
- Mist Levels: The humidifier offers 3 levels of mist output. Press the mist adjustment button to cycle through low, medium, and high settings.
- Automatic Humidity Adjustment: The smart humidity setting allows the humidifier to sense the room's humidity and adjust mist output to maintain your desired comfort level.
- 360° Nozzle: The 360° rotating nozzles allow you to direct the mist in any desired direction for even humidity distribution.
2.3 Sleep Mode
- Activate Sleep Mode to ensure an undisturbed rest.
- In Sleep Mode, the LED screen turns off, and the humidifier operates quietly, maintaining a steady humidity level.
2.4 Essential Oil Diffuser Function

Image: Location of the essential oil tray for aromatherapy.
- Locate the essential oil tray, typically a small compartment separate from the water tank.
- Add a few drops of your favorite essential oil onto the aroma pad within this tray.
- Do not add essential oils directly into the water tank, as this can damage the unit.
3. Maintenance
Regular cleaning and maintenance ensure optimal performance and longevity of your humidifier.

Image: Detailed view of the top water tank and lower base components for maintenance.
3.1 General Cleaning
- Water Tank: Lift the water tank and wipe its interior with a damp cloth. For thorough cleaning, use a mild detergent and rinse thoroughly.
- Base: Ensure the base is kept dry. Do not put anything into the base other than water from the tank.
- Exterior: Wipe the exterior of the humidifier with a soft, damp cloth.
3.2 Nebulizer Tablet / Atomizing Sheet
- The nebulizer tablet (atomizing sheet) is a delicate component.
- Use a soft brush to wipe it gently to prevent damage to the atomization function. Do not use abrasive materials or harsh chemicals.
3.3 Filters and Water Purification Device
- The humidifier includes filters for filtering impurities in the water.
- A water purification device is integrated to inhibit the growth of bacteria in the water tank, helping to keep it clean for a longer time.
- Refer to the product packaging or specific instructions for filter replacement frequency and cleaning procedures for the water purification device.
4. Troubleshooting
If you encounter issues with your humidifier, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output |
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| Humidifier leaks water |
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| Red indicator light activates / Unit shuts off automatically | Low water level (Anti-dry burn function) | Refill the water tank. The device will automatically shut off to prevent dry burning when water levels are too low. |
| Unusual noise during operation |
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5. Specifications
Key technical specifications for the Coolfiqu 5L Ultrasonic Cool Mist Humidifier.
- Brand: Coolfiqu
- Model: 5L Ultrasonic Cool Mist Humidifier
- Capacity: 5 Liters
- Runtime: Up to 50 hours per fill
- Product Dimensions: Approximately 23D x 31W x 16H Centimetres (9.06 x 12.20 x 6.30 inches)
- Item Weight: Approximately 1.92 kg (4.23 lbs)
- Control Method: Touch
- Special Features: Adjustable Mist, 360 Degree Mist Nozzle, Sleep Mode, Automatic Humidity Adjustment, Top Fill Design, Essential Oil Diffuser, Auto Shut-off (Anti-dry burn)
- Room Type: Bedroom, Large Room, Office, Nursery
6. Customer Support
For any issues or inquiries regarding your Coolfiqu humidifier, please contact our customer support team.
- If you have a defective product or require assistance, please reach out to us in a timely manner.
- Contact information can typically be found on the product packaging or the retailer's website where the product was purchased.





