Introduction
Thank you for purchasing the URPOWER 300ml Essential Oil Diffuser. This ultrasonic cool mist humidifier is designed to enhance your environment with aromatherapy, adjustable LED lighting, and quiet operation. Please read this manual thoroughly before use to ensure proper operation and maintenance.

Image: The URPOWER 300ml Essential Oil Diffuser showcasing its various LED light colors.
Safety Information
- Avoid direct skin contact with undiluted essential oils.
- Keep out of reach of children and pets.
- Ensure proper ventilation during use.
- Clean the device once a week to maintain optimal performance and safety.
- Always unplug the device when not in use.
- Fill water below the maximum line.
Product Components
The URPOWER 300ml Essential Oil Diffuser package includes the following items:
- URPOWER 300ml Essential Oil Diffuser Unit
- Power Adapter
- Instruction Manual

Image: The diffuser unit, power adapter, and instruction manual as packaged.
Setup Instructions
- Place the diffuser on a flat, stable surface.
- Remove the top cover by lifting it upwards.
- Connect the power adapter to the DC jack at the bottom of the diffuser.
- Fill the water tank with clean tap water up to the maximum water level line. Do not overfill.
- Add 3-5 drops of your preferred essential oil directly into the water tank. Adjust quantity based on personal preference.
- Replace the top cover, ensuring it is securely seated.
- Plug the power adapter into a standard electrical outlet.
Operating Instructions
The diffuser features two control buttons: 'Mist' and 'Light'.

Image: Close-up view of the diffuser showing the 'Mist' and 'Light' buttons and dimensions.
Mist Control
- Press the 'Mist' button once to turn on the mist and set the timer.
- Each press cycles through timer settings: 60 minutes, 180 minutes, 360 minutes, and continuous ON.
- The diffuser will automatically shut off when the water runs out or the set time expires.
- To turn off the mist, cycle through all timer settings until the mist indicator light is off, or press and hold the 'Mist' button for more than one second.
Light Control
- Press the 'Light' button once to turn on the LED light. The colors will automatically cycle through 7 different colors.
- Press the 'Light' button again to pause on a specific color.
- Subsequent presses will cycle through the 7 fixed colors.
- To turn off the light, press and hold the 'Light' button for 3 seconds.
Maintenance
Regular cleaning ensures optimal performance and extends the lifespan 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 or sponge. For stubborn residue, use a small amount of mild dish soap and rinse thoroughly.
- Clean the ultrasonic disc (the small ceramic disc at the bottom of the water tank) gently with a cotton swab dipped in white vinegar. Do not scrub or apply excessive pressure.
- Wipe the exterior of the diffuser with a soft, dry cloth.
- Allow all parts to air dry completely before reassembling or storing the diffuser.
- It is recommended to clean the diffuser once a week, especially if used frequently or with strong essential oils.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output |
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| Light not working |
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| Diffuser leaks water |
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| Unusual noise |
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Specifications
| Feature | Detail |
|---|---|
| Brand | URPOWER |
| Model Number | OD-305 |
| Capacity | 300 Milliliters |
| Dimensions | 4.25"L x 4.25"W x 6.02"H |
| Material | Plastic |
| Power Source | Corded Electric |
| Wattage | 12 watts |
| Coverage Area | Up to 200 square feet |
| Auto Shutoff | Yes |
| LED Light Colors | 7 changing colors |
| Timer Settings | 60 mins, 180 mins, 360 mins, ON (continuous) |
Warranty and Support
URPOWER products are manufactured with quality and care. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official URPOWER website. Please retain your proof of purchase for any warranty claims.