Introduction
Thank you for choosing the Aura Cacia Lunar Essential Oil Diffuser. This ultrasonic cool-mist diffuser is designed to disperse essential oils into your space, creating an aromatic environment. Please read this manual thoroughly before use to ensure proper operation and maintenance.

Image: The front of the Aura Cacia Lunar Diffuser packaging.
Important Safety Information
WARNING:
- Avoid direct skin contact with undiluted essential oils.
- Keep out of reach of children and pets.
- Ensure proper ventilation during use.
- This diffuser features an auto shut-off function.
- For indoor use only.
- Handle with care. This product is not a toy.
Package Contents
Verify that all items are present in the package:
- 1 x Aura Cacia Lunar Essential Oil Diffuser
- 1 x AC Adapter
- 1 x Instruction Manual (this document)
Product Features
- Ultrasonic Cool-Mist Diffusion: Disperses essential oils without heat, preserving their aromatic profile.
- Coverage: Suitable for rooms up to 150 square feet.
- Easy to Use and Clean: Simple design for straightforward operation and maintenance.
- Timer Settings: Offers continuous diffusion for 4 hours or intermittent diffusion for up to 8 hours.
- Auto Shut-off: Automatically turns off when the water level is low.
- LED Lighting: Features 7 LED colors, which can rotate or be set to a single color.
- Water Tank Capacity: 90ml (3.0 FL OZ).

Image: Side view of the product packaging detailing the ultrasonic diffuser features, specifications, and included accessories.
Technical Specifications
| Dimensions | 3.54 inches (W) x 3.54 inches (D) x 6.1 inches (H) |
| Weight | 18 ounces (main unit) |
| Water Tank Capacity | 90 ml (3.0 FL OZ) |
| Continuous Atomization Time | ≥ 4 hours |
| Intermittent Atomization Time | ≥ 8 hours |
| Timer Options | 60, 90, 120 minutes |
| Power Source | Corded Electric (AC Adapter) |
| Light Source Type | LED |
| Coverage Area | Up to 150 sq. ft. |
Setup Instructions
Follow these steps to set up your Aura Cacia Lunar Diffuser:
- Plug in the Power Adapter: Connect the AC adapter to the diffuser and then plug it into a suitable power outlet.
- Remove Cover and Lid: Gently lift and remove the outer cover, then remove the inner lid to access the water tank.
- Add Water: Fill the water tank with clean tap water up to the maximum fill line (90ml max). Do not overfill.
- Add Essential Oils: Add 5-10 drops of your preferred pure essential oils directly into the water tank. Adjust the amount based on desired aroma intensity.
- Replace Lid and Cover: Place the inner lid back onto the water tank, ensuring it is properly seated. Then, replace the outer cover.
- Turn On: Press the "ON" button to start diffusion.

Image: Visual guide illustrating the six steps for setting up and starting the diffuser.
Operating Instructions
The Aura Cacia Lunar Diffuser offers various settings for diffusion and lighting:
- Power Button: Press the power button (often labeled "ON" or with a power symbol) to turn the diffuser on or off.
- Timer Function: The diffuser has timer options for 60, 90, and 120 minutes. It can run continuously for up to 4 hours or intermittently for up to 8 hours. Refer to the buttons on your diffuser for specific timer controls.
- LED Light Control: The diffuser features 7 LED colors. There is typically a separate button (often labeled with a light bulb symbol) to control the lighting.
- Press once to cycle through rotating colors.
- Press again to pause on a specific color.
- Press and hold (or press multiple times) to turn the light off.
- Auto Shut-off: The diffuser will automatically turn off when the water level is too low, ensuring safety and prolonging the unit's lifespan.
Care and Maintenance
Regular cleaning helps maintain the diffuser's performance and extends its lifespan:
- Empty Water: Before cleaning, ensure the diffuser is unplugged. Empty any remaining water from the tank.
- Wipe Tank: Use a soft cloth or cotton swab with a small amount of rubbing alcohol or a mild detergent to gently wipe the inside of the water tank and the ultrasonic disc.
- Rinse: Rinse the tank with clean water, being careful not to get water into the air outlet.
- Dry: Wipe all parts dry with a clean, soft cloth.
- Frequency: Clean the diffuser after every 5-6 uses or when changing essential oils to prevent residue buildup.
Troubleshooting
If you encounter issues with your diffuser, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist |
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| Diffuser leaks water |
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| Light not working |
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Warranty and Customer Support
For general inquiries, technical support, or warranty information, please contact Aura Cacia customer service:
- Phone: 1-800-669-3275
- Website: www.auracacia.com
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