1. Introduction
Thank you for choosing the JUNICHY 5.5L Cool Mist Ultrasonic Humidifier. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new humidifier. Please read it thoroughly before use and retain it for future reference.
2. Important Safety Instructions
- Always place the humidifier on a firm, flat, waterproof surface at least 6 inches (15 cm) away from walls and appliances.
- Do not place the humidifier directly on carpet, rugs, or absorbent surfaces.
- Unplug the humidifier from the power outlet before filling, cleaning, or moving it.
- Do not immerse the base unit in water or other liquids.
- Keep out of reach of children and pets.
- Use only clean, cool tap water. Distilled or demineralized water is recommended to prevent white dust.
- Do not add essential oils directly into the water tank unless specifically designed for it. Use the designated essential oil tray if available.
- Do not block the mist outlet.
3. Product Overview
The JUNICHY 5.5L Cool Mist Ultrasonic Humidifier is designed to provide comfortable humidity levels in your home. Its key features include:
- Large Capacity: 5.5-liter water tank for extended operation.
- Long Runtime: Up to 48 hours of continuous mist on a single fill.
- Top-Fill Design: Easy and convenient water refilling.
- Easy Clean: Wide opening for thorough cleaning.
- BPA-Free: Safe for use in nurseries and baby rooms.
- Ultrasonic Quiet Operation: Operates at less than 26dB, ideal for bedrooms.
- Auto Shut-off: Automatically turns off when water level is low or the tank is lifted.
- 360° Nozzle: Allows for directional mist output.
- Adjustable Mist: Customizable mist settings for personalized comfort.

Image: The JUNICHY humidifier providing mist in a large room, highlighting its 400 sq ft coverage and 300ml/h mist output.
4. Setup
- Unpack: Carefully remove all packaging materials and ensure all components are present.
- Placement: Place the humidifier on a flat, stable, and waterproof surface. Ensure it is at least 6 inches (15 cm) away from walls, furniture, and electronic devices.
- Fill Water Tank: Remove the top cover. Fill the water tank directly from the top opening with clean, cool tap water. Do not exceed the maximum fill line indicated inside the tank.
- Replace Cover: Place the top cover back onto the humidifier, ensuring it is properly seated.
- Connect Power: Plug the power cord into a standard electrical outlet.

Image: Visual guide demonstrating the easy top-filling and cleaning process of the humidifier.
5. Operating Instructions
- Power On/Off: Turn the control knob located on the front of the base unit clockwise to turn the humidifier on. Turn it counter-clockwise until it clicks to turn it off.
- Adjust Mist Level: Rotate the control knob to adjust the mist output from low to high.
- 360° Mist Nozzle: The mist nozzle on top can be rotated 360 degrees to direct the mist in any desired direction.
- Essential Oil Use: If your model includes an essential oil tray, add a few drops of your favorite essential oil to the designated tray. Do not add essential oils directly into the water tank.
- Auto Shut-off: The humidifier will automatically turn off when the water level is too low or if the water tank is removed from the base. The indicator light may change color or turn off to signal this.

Image: Features such as the 360° nozzle, adjustable mist settings, and the auto shut-off mechanism are shown.

Image: The humidifier's capability for direct essential oil use is depicted, enhancing the user's environment.

Image: The humidifier operating quietly in a bedroom, emphasizing its low noise level (less than 26dB) for undisturbed sleep.

Image: The humidifier positioned near plants, illustrating its effectiveness in humidifying rooms for plant care.
6. Maintenance
Regular cleaning is crucial for optimal performance and hygiene.
- Daily Maintenance:
- Unplug the humidifier.
- Empty any remaining water from the tank and base.
- Rinse the tank and base with fresh water.
- Wipe all surfaces dry with a clean cloth.
- Weekly Descaling:
- Unplug the humidifier.
- Pour 2 cups of undiluted white vinegar into the water tank and base.
- Let it soak for 20-30 minutes.
- Use a soft brush or cloth to clean mineral deposits.
- Rinse thoroughly with clean water until the vinegar smell is gone.
- Wipe dry.
- Storage: When not in use for an extended period, clean and dry the humidifier thoroughly. Store it in a cool, dry place.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output | Low water level; mineral buildup; mist outlet blocked. | Refill water tank; clean the transducer and base; ensure mist outlet is clear. |
| Unusual odor | Stagnant water; new unit smell. | Clean the tank and base thoroughly; run for a few hours in a well-ventilated area. |
| Water leakage | Tank not seated correctly; damaged tank. | Ensure tank is properly placed; check for cracks or damage. |
| White dust around humidifier | Hard water used. | Use distilled or demineralized water. Clean the area regularly. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | JUNICHY |
| Model Name | air humidifier |
| Capacity | 5.5 Liters |
| Runtime | Up to 48 hours |
| Operation Mode | Ultrasonic |
| Control Method | Touch (Rotary Knob) |
| Special Features | Auto Shut Off, Quiet, Top Fill, Easy Clean, BPA Free |
| Material | Polypropylene |
| Color | White |
| ASIN | B09S3B14M2 |
| GTIN/UPC | 605500342270 |
9. Warranty and Support
Your JUNICHY humidifier comes with a manufacturer's warranty. For specific warranty details, please refer to the warranty card included in your product packaging or contact our customer support. If you encounter any issues or have questions not covered in this manual, please reach out to our customer service team for assistance.