1. Introduction
The SpaRoom HerbalAir 2.0 is an ultrasonic essential oil diffuser designed to disperse essential oils into the air. This device features a woodgrain finish and a 70mL water capacity, offering two misting modes for varied operation times. It is suitable for use in small to medium-sized rooms.

Image 1.1: SpaRoom HerbalAir 2.0 Essential Oil Diffuser. This image displays the main unit of the diffuser, highlighting its compact, cylindrical shape and woodgrain finish.

Image 1.2: Diffuser integrated into home decor. The diffuser is shown on a table alongside decorative plants, illustrating its aesthetic appeal and suitability as a home decor item.
2. Safety Instructions
- Read all instructions before operating the diffuser.
- Place the diffuser on a flat, stable surface.
- Do not place the diffuser near heat sources or in direct sunlight.
- Keep out of reach of children and pets.
- Use only clean tap water and 100% pure essential oils. Do not use synthetic fragrances or corrosive liquids.
- Do not exceed the maximum water level line.
- Unplug the diffuser from the power source when not in use or before cleaning.
- Do not immerse the diffuser unit in water or any other liquid.
- If the diffuser emits smoke or an unusual odor, unplug it immediately and discontinue use.
3. Package Contents
Verify that all items are present in the package:
- HerbalAir 2.0 Diffuser Unit
- USB Power Cord
- User Manual (this document)
4. Setup Guide
Follow these steps to set up your HerbalAir 2.0 Diffuser:
- Place the diffuser on a flat, stable surface.
- Remove the outer cover by lifting it upwards.
- Fill the water tank with clean tap water up to the maximum water level line (70mL capacity). Do not overfill.
- Add 2-3 drops of your preferred essential oil directly into the water tank.
- Replace the outer cover securely.
- Connect the USB power cord to the diffuser and then to a compatible USB power adapter (not included) or USB port.

Image 4.1: Step-by-step setup. This image illustrates the three main steps for preparing the diffuser: removing the cover, adding water and essential oil, and replacing the cover before operation.
5. Operating Instructions
Once set up and powered, operate the diffuser using the power button:
- First Press: Activates continuous mist mode. The diffuser will operate for up to 4 hours continuously.
- Second Press: Activates intermittent mist mode. The diffuser will operate for up to 8 hours, cycling mist on and off.
- Third Press: Turns off the diffuser.
The diffuser features an automatic safety shut-off function that activates when the water level is too low, preventing overheating and ensuring safe operation.

Image 5.1: Diffuser in operation. This image shows the diffuser emitting mist, indicating its functionality and long run time capabilities.

Image 5.2: Diffuser operating during sleep. The image depicts the diffuser in a bedroom setting, emphasizing its quiet operation and suitability for extended use, such as during sleep, with its 8-hour intermittent mode.
6. Maintenance and Cleaning
Regular cleaning helps maintain the diffuser's performance and extends its lifespan:
- Unplug the diffuser from the power source and remove the cover.
- Empty any remaining water from the tank.
- Wipe the inside of the water tank and the ultrasonic disc with a soft, damp cloth.
- For stubborn residue, use a cotton swab dipped in white vinegar to gently clean the ultrasonic disc.
- Rinse the tank with clean water, ensuring no vinegar residue remains.
- 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 abrasive cleaners, harsh chemicals, or immerse the main unit in water.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist | Low water level Ultrasonic disc dirty Diffuser not plugged in correctly | Add water to the tank Clean the ultrasonic disc as per maintenance instructions Ensure power cord is securely connected |
| Water leaking | Overfilled water tank Cover not properly secured | Do not exceed the max water line Ensure the cover is correctly aligned and fully seated |
| Power indicator light not on | No power Diffuser not turned on | Check USB connection and power source Press the power button to turn on the diffuser |
8. Technical Specifications

Image 8.1: Key features and specifications. This image visually summarizes the diffuser's attributes, including misting type, power source, water capacity, run time, and safety features.
- Model Name: HerbalAir 2.0
- Model Number: S08400
- Brand: SpaRoom
- Power Source: USB Powered
- Water Capacity: 70 Milliliters (2.37 fl. oz.)
- Run Time: Up to 4 hours (continuous), Up to 8 hours (intermittent)
- Automatic Shutoff: Yes (low water level)
- Material: Plastic
- Colour: Brown (Woodgrain finish)
- Coverage: Small to Medium rooms
- GTIN (UPC): 850004548400
9. Warranty and Support
For any questions or concerns regarding your SpaRoom HerbalAir 2.0 Essential Oil Diffuser, please contact SpaRoom customer support through the retailer's messaging system where the product was purchased. Please refer to your purchase documentation for specific warranty details, as warranty terms may vary by region and retailer.