1. Introduction
Thank you for choosing the YOGIN 3L Top-Fill Cool Mist Humidifier, Model Hu25. This device is designed to enhance your indoor environment by providing cool mist humidification and can also function as an essential oil diffuser. Its ultra-quiet operation and user-friendly design make it suitable for various rooms, including bedrooms, nurseries, and offices. Please read this manual thoroughly before operation to ensure proper use and maintenance.
2. Important Safety Instructions
- Read all instructions before using the humidifier.
- Always place the humidifier on a firm, flat, waterproof surface at least 12 inches (30 cm) away from walls and appliances.
- Do not place the humidifier near heat sources such as stoves, radiators, or direct sunlight.
- Ensure the power cord is not damaged and is placed away from high-traffic areas.
- Unplug the humidifier before filling, cleaning, or moving it.
- Do not immerse the base in water or other liquids.
- This appliance has an automatic shut-off feature that activates when the water level is low, ensuring safety.
- Only use clean, cool tap water. Distilled or demineralized water is recommended to prevent white dust.
- Keep out of reach of children and pets.
- The humidifier is ETL listed, indicating compliance with North American safety standards.
3. Package Contents
Verify that all components are present in the packaging:
- YOGIN 3L Top-Fill Cool Mist Humidifier
- ETL Listed AC Adapter
- Cleaning Brush
- User Manual
4. Product Overview
Familiarize yourself with the main parts of your YOGIN humidifier.


Key Components:
- Mist Nozzle: 360° rotatable for directing mist.
- Water Tank: 3-liter capacity, translucent for water level visibility, top-fill design.
- Control Panel: Touch buttons for mist level, light, and timer functions.
- Base: Houses the ultrasonic atomizer and electronic components.
- Essential Oil Tray: Integrated for aromatherapy (essential oils can be added directly to the water tank due to PP material).
5. Setup
- Unpack: Carefully remove all packaging materials and place the humidifier on a flat, stable surface.
- Placement: Position the humidifier in the desired location, ensuring it is at least 12 inches (30 cm) from walls, furniture, and electronics to prevent moisture damage.
- Fill Water Tank: Open the top cover and pour clean, cool water directly into the water tank. Do not exceed the maximum fill line.
- Add Essential Oils (Optional): If using essential oils, add a few drops directly into the water tank. The humidifier's PP material is compatible with essential oils.
- Connect Power: Plug the AC adapter into the humidifier's power port, then plug the adapter into a standard electrical outlet.

6. Operating Instructions
6.1 Power On/Off
- Press the power button (usually indicated by a wave icon or power symbol) on the control panel to turn the humidifier on or off.
6.2 Mist Control
The humidifier features an easy-to-use dial knob for precise mist adjustment. Rotate the knob to increase or decrease the mist output to your desired level. The 360° rotating nozzle allows you to direct the mist flow.

6.3 Ambient Lighting
Press the light button (indicated by a light bulb icon) to cycle through the 7-color ambient lighting options or to turn the light off. You can choose a single color or allow it to cycle automatically.

6.4 Timer Function
Press the timer button (indicated by a clock icon) to set the humidifier to operate for a specific duration. Refer to the product specifications for available timer settings.
6.5 Auto Shut-Off
The humidifier is equipped with an automatic shut-off feature that activates when the water level in the tank is too low, preventing damage to the unit and ensuring safety.
7. Maintenance and Cleaning
Regular cleaning is essential for optimal performance and hygiene. The top-fill design and PP material facilitate easy cleaning.
- Daily Maintenance: Empty and rinse the water tank daily. Allow all parts to air dry before refilling.
- Weekly Cleaning:
- Unplug the humidifier and remove the top cover.
- Empty any remaining water from the tank and base.
- Fill the water tank halfway with water and add 2 tablespoons of white vinegar. Let it sit for 30 minutes.
- Use the provided cleaning brush to gently clean the atomizer and other internal components.
- Rinse the tank and base thoroughly with clean water until the vinegar smell is gone.
- Wipe all surfaces dry with a soft cloth.
- Storage: If storing the humidifier for an extended period, ensure all parts are clean and completely dry. Store in a cool, dry place.
8. 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 | Low water level; clogged atomizer; power issue | Refill water tank; clean atomizer with brush; ensure power cord is securely plugged in. |
| Unusual odor | Stagnant water; dirty tank; mineral buildup | Clean the water tank and base thoroughly; use fresh water daily. |
| Water leakage | Overfilled tank; improper placement of top cover | Do not overfill past the max line; ensure the top cover is correctly seated. |
| Humidifier not turning on | No power; low water level (auto shut-off) | Check power connection; refill water tank. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | YOGIN |
| Model Name | Hu25 |
| Water Capacity | 3 Liters |
| Operation Mode | Ultrasonic Cool Mist |
| Max Runtime | Up to 40 hours (on low setting) |
| Noise Level | <24dB (Ultra-Quiet) |
| Product Dimensions | 7.1"D x 7.1"W x 10.2"H |
| Voltage | 110 Volts (AC) |
| Wattage | 26 watts |
| Special Features | Aroma Diffuser, Auto Shut Off, Night Light, Quiet Operation, Timer |
| Included Components | Humidifier, AC adapter, cleaning brush, user manual |
10. Warranty and Customer Support
YOGIN is committed to providing quality products. While specific warranty details are not provided in this manual, please retain your proof of purchase for any warranty claims. For technical support, troubleshooting assistance, or inquiries regarding your YOGIN humidifier, please contact our customer support team through the retailer where you purchased the product or visit the official YOGIN website for contact information.