1. Introduction
Thank you for choosing the DREO 6L Smart Warm & Cool Mist Humidifier. This manual provides essential information for the safe and efficient operation of your new humidifier. Please read it thoroughly before use and retain it for future reference.

Figure 1: DREO 6L Smart Warm & Cool Mist Humidifier (Grey model) in operation, emitting mist.
2. Safety Instructions
To reduce the risk of fire, electric shock, or injury, always follow basic safety precautions when using this appliance:
- Place the humidifier on a firm, flat, water-resistant surface away from walls and heat sources.
- Do not immerse the base in water or other liquids.
- Always unplug the humidifier before cleaning, filling, or moving it.
- Keep out of reach of children and pets.
- Use only clean, cool tap water or distilled water. Do not add essential oils directly into the water tank; use the designated aroma tray.
- Do not block the mist outlet.
3. Product Components
Familiarize yourself with the main parts of your DREO humidifier:

Figure 2: Key components of the humidifier, including the detachable mist pipe, burn-proof shield, cartridge port, and top-fill water tank.
- Water Tank: 6-liter capacity for extended operation.
- Mist Outlet: Adjustable for directing mist.
- Control Panel: Digital display and touch buttons for various settings.
- Aroma Tray: For adding essential oils (located at the base).
- Power Cord: For connecting to an electrical outlet.
4. Setup
- Unpack: Remove all packaging materials and place the humidifier on a stable, flat surface.
- Fill Water Tank: The humidifier features a top-fill design. Simply open the top lid and pour water directly into the tank. Ensure the water level does not exceed the MAX line.
- Connect Power: Plug the power cord into a standard 110V electrical outlet.
Video 1: Demonstration of the top-fill water tank and easy refilling process.
5. Operating Instructions
The DREO humidifier offers various modes and settings for optimal comfort.
5.1 Power On/Off
Press the power button (⏻) on the control panel to turn the humidifier on or off.
5.2 Mist Control (Warm & Cool Mist)
The humidifier provides both warm and cool mist options. The digital display shows the current humidity level and mist settings.
- Mist Level: Cycle through 3 mist levels by pressing the mist button.
- Warm Mist: Activate warm mist for faster humidification (reaches 133°F in 5 minutes).
- Cool Mist: Select cool mist for standard humidification.

Figure 3: Digital display indicating current humidity and mist settings.

Figure 4: Illustration of the faster and safer warm mist system, featuring an airflow booster and PTC heater.
5.3 Humidity Control (Auto Mode)
The humidifier features precise humidity control with a 5% tolerance.
- Auto Mode: Set your target humidity between 30% to 90%. The humidifier will automatically adjust its operation to maintain this level.
- Humidity Indicator Light: An ambient light changes color (Dry, Comfort, Wet) to visually indicate the current humidity status.

Figure 5: High precision humidity control with ambient light indicator.
5.4 Smart Features (DREO App & Voice Control)
Control and monitor your humidifier remotely using the DREO app or voice assistants.
- DREO App: See real-time humidity readings, track levels for up to 30 days, and customize settings.
- Voice Control: Compatible with Google Assistant and Alexa for hands-free operation.

Figure 6: DREO app interface for smart control and monitoring.
5.5 Timer & Sleep Mode
- Timer: Set a 12-hour timer for automatic shut-off.
- Sleep Mode: Automatically turns off LED lights and reduces noise for a peaceful sleep environment.
5.6 Aroma Tray
Enhance your environment with essential oils using the dual-aroma pad tray. Simply move the tray cover to switch between scents.
Video 2: Overview of humidifier features, including mist control, auto mode, and smart app connectivity.
6. Maintenance
Regular cleaning and maintenance ensure optimal performance and longevity of your humidifier.
6.1 Cleaning
- Daily Cleaning: Empty and rinse the water tank daily.
- Weekly Cleaning: Clean the water tank and base with a soft brush and mild detergent. Rinse thoroughly.
- Descaling: Use a descaling solution or a mixture of white vinegar and water to remove mineral buildup.
- The DREO app can provide smart cleaning reminders.
6.2 Filter Replacement
The humidifier is compatible with an optional demineralization cartridge to reduce mineral buildup and provide softer mist. Search for 'DREO Demineralization Cartridge' for replacements. The app can track filter life.
7. Troubleshooting
If you encounter any issues with your DREO humidifier, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist output | Water tank empty; mist outlet blocked; power not connected. | Refill water tank; clear mist outlet; check power connection. |
| Unusual noise | Humidifier not on a flat surface; water level too low. | Place on a flat surface; refill water tank. |
| E3 Error Code | Heating element failure (as per customer review). | Contact DREO customer support for assistance. |
| Inaccurate humidity reading | Sensor may be affected by initial fill or placement. | Allow time for stabilization; ensure proper placement away from mist. |
8. Specifications
- Model Name: DR-HHM003S
- Product Dimensions: 11.4 x 6.14 x 13.93 inches
- Item Weight: 5.95 Pounds
- Capacity: 6 Liters
- Operation Mode: Ultrasonic
- Runtime: 60 hours
- Voltage: 110 Volts
- Wattage: 280 watts
- Control Method: App, Touch, Voice
- Filter Type: Demineralization Cartridge (optional)
- Material: BPA-Free Plastic
- Color: Grey

Figure 7: Dimensions of the DREO 6L Smart Humidifier.
9. Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or visit the official DREO website. You may also contact DREO customer service directly for assistance with product issues or inquiries.





