Introduction
This manual provides essential information for the safe and effective operation of your BlueHills Premium 2500 ML XL Essential Oil Diffuser and Humidifier, Model F003. This device is designed to enhance your environment through aromatherapy and humidification, featuring a large 2500 ML water tank, up to 30 hours of run time, 7 LED light colors, multiple mist modes, and an automatic shut-off safety feature.

Image: BlueHills Premium 2500 ML XL Essential Oil Diffuser in Dark Wood Grain, showcasing its design and size.
Important Safety Information
- Keep out of reach of children.
- Avoid contact with skin and eyes.
- If essential oil is ingested, seek medical help immediately.
- Ensure the diffuser is placed on a stable, flat surface.
- Do not operate the diffuser with an empty water tank.
- Use only clean tap water or distilled water.
- Do not exceed the maximum water fill line.
Package Contents
Verify that all items are present in the package:
- 1 x BlueHills Premium 2500 ML XL Essential Oil Diffuser Unit
- 1 x Power Adapter
- 1 x Cleaning Brush
- 1 x User Manual
Setup Instructions
- Remove the diffuser from its packaging.
- Place the diffuser on a flat, stable surface away from direct sunlight or heat sources.
- Carefully remove the top cover of the diffuser.
- Fill the 2500 ML water tank with clean water. Ensure the water level is below the 'MAX' line indicated inside the tank.
- Add 10-15 drops of your preferred undiluted essential oil directly into the water tank. Adjust the quantity based on desired aroma intensity.
- Replace the top cover securely. Ensure it is properly aligned to prevent leaks.
- Connect the power adapter to the diffuser's power input and then plug it into a wall outlet.

Image: A hand pouring water into the diffuser's water tank, illustrating the filling process.
Setup Demonstration Video
Video: An official BlueHills video demonstrating the setup and basic operation of the 2500ml Essential Oil Diffuser and Humidifier.
Operating Instructions
The diffuser features touch-sensitive buttons on the front panel for controlling mist, light, and timer settings. Press buttons gently for optimal response.
Mist Control
- Mist Button (Heatwave Icon): Press once to turn on the mist. Continue pressing to cycle through mist modes (High, Low, Intermittent, Off).
- The diffuser offers adjustable mist output, allowing you to customize the intensity.

Image: Two diffusers demonstrating the difference between low mist and high mist output.
Light Control
- Light Button (Lightbulb Icon): Press once to turn on the LED lights.
- Continue pressing to cycle through 7 different LED colors, a color-changing mode, or to turn the lights off.

Image: A visual representation of the diffuser displaying its seven different LED light color options.
Timer Settings
- Timer Button (Clock Icon): Press to set the operating time for 2 hours, 4 hours, 8 hours, or continuous operation (ON).
- The diffuser will automatically shut off when the selected time expires or when the water level is low.
Maintenance
Regular cleaning is crucial to maintain the performance and longevity of your diffuser.
- Unplug the diffuser from the power outlet before cleaning.
- Remove the top cover and empty any remaining water from the tank.
- Wipe the inside of the water tank with a soft cloth. For stubborn residue, use a cotton swab dipped in white vinegar to gently clean the ultrasonic plate located at the bottom of the tank.
- Rinse the tank thoroughly with clean water, avoiding direct contact with the air outlet.
- Wipe the exterior of the diffuser with a soft, dry cloth.
- Allow all parts to air dry completely before reassembling or storing.
Note: Do not use harsh detergents, abrasive cleaners, or solvents, as these may damage the diffuser.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist output | Low water level; Lid not properly seated; Ultrasonic plate dirty. | Add water; Realign and secure lid; Clean ultrasonic plate. |
| No power/unit not turning on | Power adapter not connected; Outlet issue. | Ensure adapter is securely plugged in; Try a different outlet. |
| Lights not working | Light function is off. | Press the Light button to activate or cycle through colors. |
| Weak mist | Insufficient water; Dirty ultrasonic plate; Air outlet blocked. | Refill water; Clean ultrasonic plate; Ensure air outlet is clear. |
Specifications
- Brand: BlueHills
- Model Name: F003
- Color: Dark Wood Grain
- Capacity: 2500 Milliliters
- Run Time: Up to 30 hours (low mist)
- Coverage Area: 500 Square Feet
- Power Source: Corded Electric (110 watts)
- Material: Polypropylene (PP), BPA Free
- Product Dimensions: 6.5"L x 6.5"W x 11.5"H
- Special Features: 7-LED lights, Adjustable Mist Settings, Timer (2H, 4H, 8H, ON), Auto Shut-off, Humidifier Function
- Item Weight: 2.14 Pounds

Image: The diffuser with its key dimensions labeled for clarity.
Warranty and Support
BlueHills is a family-owned business committed to customer satisfaction. For any questions, concerns, or warranty inquiries regarding your BlueHills Premium 2500 ML XL Essential Oil Diffuser, please contact the seller directly through your purchase platform or refer to the contact information provided with your product packaging.
Your complete satisfaction with this product is our top priority. We will make sure to address your concerns.