Introduction
The SpaRoom Mysto Ultrasonic Essential Oil Diffuser is designed to disperse essential oils into the air, creating a fragrant and soothing environment. This diffuser utilizes ultrasonic technology to create a fine mist without heat, preserving the therapeutic properties of essential oils. It features multiple mist and light settings, along with an automatic safety shut-off for convenience and peace of mind.

Image: The SpaRoom Mysto Ultrasonic Essential Oil Diffuser, showcasing its marble design in various home environments.
Setup
Unpacking
Carefully remove all components from the packaging. Ensure you have the diffuser unit, the AC adapter, and this instruction manual. Inspect the diffuser for any damage before initial use.

Image: The SpaRoom Mysto Ultrasonic Essential Oil Diffuser shown with its packaging.
Placement
Place the diffuser on a flat, stable surface away from direct sunlight, heat sources, and air conditioning vents. Ensure it is out of reach of children and pets.
Filling the Diffuser
- Remove the top cover of the diffuser.
- Using a clean measuring cup, fill the water reservoir with clean tap water up to the 140 mL (4.73 fl oz) maximum fill line. Do not overfill.
- Add 5-10 drops of your preferred essential oil directly into the water. Adjust the number of drops based on desired scent intensity.
- Replace the top cover securely.

Image: The diffuser with its top removed, showing the water reservoir and the maximum fill line. Features like 10 hours of soothing mist, ultrasonic technology, cETL US certified AC adapter, and warm white light are highlighted.

Image: A visual guide demonstrating the three easy steps to set up the diffuser: removing the top, adding water and essential oil, and replacing the top to begin diffusion.
Connecting Power
Connect the AC adapter to the power input port on the base of the diffuser. Plug the adapter into a standard electrical outlet.
Video: An official SpaRoom video demonstrating the setup and operation of the Mysto Ultrasonic Essential Oil Diffuser, including filling with water and oil, and activating mist and light functions.
Operation
Powering On/Off
Press the power button located on the front of the diffuser to turn the unit on. Press the button again to cycle through mist and light settings, or hold it down to turn the unit off.
Mist Modes
The Mysto diffuser offers two mist modes:
- Continuous Operation: Provides a steady mist for up to 5 hours.
- Intermittent Operation: Mists for 30 seconds on, then 30 seconds off, extending operation up to 10 hours.

Image: The SpaRoom Mysto Ultrasonic Essential Oil Diffuser actively emitting a fine mist, indicating its operational state.
Light Modes
The diffuser includes three illumination options:
- Bright White Light: Provides a clear, bright illumination.
- Soft White Light: Offers a more subdued, warm glow.
- Off: The light can be turned off completely while the diffuser continues to mist.
Maintenance
Cleaning
Regular cleaning is essential for optimal performance and longevity of your diffuser. Follow these steps:
- Unplug the diffuser from the power outlet.
- Remove the top cover and empty any remaining water from the reservoir.
- Wipe the inside of the water reservoir with a soft, damp cloth. For stubborn residue, use a cotton swab dipped in white vinegar to gently clean the ultrasonic plate.
- Rinse the reservoir with clean water, being careful not to get water into 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.
Storage
When not in use for an extended period, clean the diffuser thoroughly and store it in a cool, dry place. Keep it in its original packaging if possible to protect it from dust and damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output | Low water level; clogged ultrasonic plate; diffuser not level. | Refill water to the max line; clean the ultrasonic plate; ensure diffuser is on a flat surface. |
| Diffuser automatically shuts off | Water level is too low. | Refill the water reservoir. Allow to cool if it was running dry. |
| No power | Power adapter not properly connected; power outlet issue. | Check power connections; try a different outlet. |
| Unpleasant odor from diffuser | Diffuser needs cleaning; old essential oil residue. | Clean the diffuser thoroughly as per maintenance instructions. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Mysto |
| Water Capacity | 140 mL (4.73 fl oz) |
| Suggested Room Size | Up to 200 square feet |
| Continuous Operation | Up to 5 hours |
| Intermittent Operation | Up to 10 hours |
| Light Mode | Bright white, Soft white, or Off |
| Power | AC adapter included, cETL us approved |
| Safety Feature | Automatic safety shut-off |
| Material | Plastic |
| Product Dimensions | 4.8 x 4.8 x 4.6 inches |
| Item Weight | 12.8 ounces |
Safety Information
Always ensure that the water level is above the minimum line to avoid the automatic safety shut-off. If the diffuser turns off due to low water level, allow it to cool before refilling and restarting. Keep the diffuser out of reach of children and pets to prevent accidental ingestion of essential oils.

Image: The diffuser with icons indicating it is safe for use around children and pets.
Warranty Information
For specific warranty details, please refer to the warranty card included with your product or contact SpaRoom customer support. Keep your purchase receipt as proof of purchase for any warranty claims.
Customer Support
If you have any questions or require assistance with your SpaRoom Mysto Ultrasonic Essential Oil Diffuser, please visit the official SpaRoom website or contact their customer service department for support.





