Introduction
The HoMedics Ultrasonic Aroma Diffuser is designed to enhance your environment by delivering a fine mist of natural aroma and providing soothing humidity. This diffuser features a color-changing light to create a peaceful ambiance and offers flexible run times to suit your needs.
Please read this manual thoroughly before operating the diffuser and retain it for future reference.

Image: The HoMedics Ultrasonic Aroma Diffuser, featuring its distinctive red teardrop shape and a subtle wood-grain base.
Important Safety Information
When using electrical appliances, basic precautions should always be followed, including the following:
- Always place the diffuser on a firm, flat, and level surface.
- Do not immerse the unit in water or other liquids.
- Use only the AC adapter provided with the unit.
- Keep the diffuser out of reach of children and pets.
- Do not block the mist outlet during operation.
- Unplug the unit from the electrical outlet immediately after use and before cleaning.
Package Contents
Verify that all items are present in your package:
- HoMedics Ultrasonic Aroma Diffuser Unit
- AC Adapter
- Essential Oil Samples (e.g., Peppermint, Eucalyptus)
- Instruction Manual

Image: Contents of the HoMedics Ultrasonic Aroma Diffuser package, including the diffuser, power adapter, and essential oil samples.
Setup
- Unpack the Diffuser: Carefully remove all components from the packaging.
- Place the Diffuser: Position the diffuser on a dry, level, non-metallic surface. Ensure it is away from direct sunlight and heat sources.
- Remove the Outer Cover: Gently twist and lift the outer red cover from the base.
- Remove the Inner Lid: Lift off the inner white lid to expose the water reservoir.
- Fill the Water Reservoir: Pour clean tap water into the reservoir up to the maximum fill line. Do not overfill.

Image: A hand demonstrates filling the diffuser's water reservoir with water.
- Add Essential Oils: Add 5-7 drops of your preferred HoMedics essential oil directly into the water. You may adjust the amount of oil to your personal preference.
- Replace Lids: Place the inner white lid back onto the reservoir, ensuring it is properly seated. Then, replace the outer red cover, aligning it correctly.
- Connect Power: Plug the AC adapter into the power port on the back of the diffuser, then plug the adapter into a standard electrical outlet.
Operating Instructions
The diffuser features two control buttons on its base: Power and Light.

Image: Close-up view of the diffuser's control buttons, labeled 'POWER' and 'LIGHT'.
- Powering On/Off:
- Press the POWER button once for continuous mist. The diffuser will run for up to 6 hours.
- Press the POWER button a second time for intermittent mist (30 seconds on, 30 seconds off). The diffuser will run for up to 12 hours.
- Press the POWER button a third time to turn the diffuser off.
- Controlling the Light:
- Press the LIGHT button once to turn on the color-changing light.
- Press the LIGHT button a second time to pause the light on its current color.
- Press the LIGHT button a third time to turn the light off.

Image: The diffuser in operation, releasing a soothing mist into the air.
Maintenance
Regular cleaning helps ensure optimal performance and extends the life of your diffuser.
- Daily Cleaning:
- Always unplug the unit before cleaning.
- Drain any remaining water from the reservoir.
- Wipe the reservoir and covers with a clean, damp, soft cloth.
- Weekly Cleaning (for optimal performance):
- Unplug the unit and drain the water.
- Pour a small amount of white vinegar (about 1 teaspoon) into the water reservoir.
- Let it soak for 5-10 minutes to loosen mineral buildup.
- Gently wipe the inside of the reservoir and the ultrasonic membrane with a soft brush (like a cotton swab) to remove any residue.
- Rinse the reservoir thoroughly with clean water, being careful not to get water into the air outlet.
- Wipe dry with a soft cloth.
- Storage: If not using the diffuser for an extended period, clean it thoroughly and store it in a cool, dry place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output |
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| Unit does not power on |
|
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| Light is not working |
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Specifications
- Brand: Homedics
- Model: Ultrasonic Aroma Diffuser
- Material: Wood (base), Ceramic/Plastic (body)
- Light Source: Integrated LED Light (Color-changing)
- Run Time: Up to 6 hours continuous, 12 hours intermittent
- Auto Shutoff: No (User must manually turn off or it runs until water is depleted)
- Unit Count: 1 Count
- ASIN: B07Z8G8M19
- Date First Available: October 24, 2019
Warranty and Support
HoMedics products are manufactured with the highest quality standards. For information regarding warranty coverage or customer support, please refer to the warranty card included with your purchase or visit the official HoMedics website. You may also contact HoMedics customer service directly for assistance with product operation or troubleshooting.





