Introduction
Thank you for purchasing the TomCare 400ml Wood Grain Essential Oil Diffuser. This ultrasonic cool mist humidifier is designed to enhance your environment with aromatherapy, providing a calm and relaxing atmosphere. Please read this manual carefully before use to ensure proper operation and maintenance.
Safety Precautions
To prevent injury or damage to the product, please observe the following safety guidelines:
- Always place the diffuser on a flat, stable surface.
- Do not add water over the maximum fill line indicated inside the water tank.
- Use only clean tap water or distilled water.
- Only use 100% pure essential oils. Avoid corrosive or chemical-based oils.
- Do not touch the ultrasonic vibrating plate directly with your hands.
- Keep the diffuser out of reach of children and pets.
- Unplug the diffuser from the power outlet before cleaning or refilling.
- Do not immerse the diffuser base in water or any other liquid.
- If the diffuser emits an unusual smell or sound, unplug it immediately.
Package Contents
Verify that all items are present in the package:
- 1 x TomCare Aroma Diffuser
- 1 x AC Adapter
- 1 x Measuring Cup for filling water
- 1 x User Manual (this document)
Product Overview
Familiarize yourself with the diffuser's components and controls.

Image: Front view of the TomCare diffuser showing its dimensions (7.9 inches height, 5.7 inches width) and the location of the Light Button and Mist Button at the base.
The diffuser features a wood grain finish and a unique vase-like shape. The control buttons are located at the front base of the unit.
- Light Button: Controls the LED light settings.
- Mist Button: Controls the mist output and timer settings.
Setup
Follow these steps to set up your diffuser for first use:
- Place the diffuser on a stable, level surface away from direct sunlight or heat sources.
- Remove the top cover by gently lifting it upwards.
- Using the provided measuring cup, fill the water tank with clean water up to the maximum fill line (400ml capacity). Do not overfill.
- Add 3-5 drops of your preferred essential oil directly into the water tank. Adjust the amount based on your preference.
- Replace the top cover, ensuring it is securely seated.
- Connect the AC adapter to the power input port at the bottom of the diffuser, then plug the adapter into a standard wall outlet.
Operating Instructions
Mist Control and Timer Settings
- First Press (Mist Button): Activates continuous mist mode.
- Second Press: Sets the timer for 1 hour (1H).
- Third Press: Sets the timer for 3 hours (3H).
- Fourth Press: Sets the timer for 6 hours (6H).
- Fifth Press: Turns off the mist.
The diffuser will automatically shut off when the water level is too low, regardless of the timer setting.
Light Control

Image: A row of TomCare diffusers, each illuminated with a different color from the 7-color LED changing light feature, demonstrating the color options.
- First Press (Light Button): Activates the 7-color changing cycle.
- Second Press (and subsequent presses): Fixes the light to a specific color. Continue pressing to cycle through the available colors.
- Long Press (approx. 2 seconds): Turns off the light.
Maintenance
Regular cleaning ensures optimal performance and extends the lifespan of your diffuser.
- Frequency: Clean the diffuser at least once a week, or more frequently if used daily or with strong essential oils.
- Preparation: Unplug the diffuser and remove the top cover. Pour out any remaining water from the drain side (opposite the air outlet) to avoid water entering the air vent.
- Cleaning the Water Tank: Wipe the inside of the water tank with a soft cloth. For stubborn residue, use a cotton swab dipped in white vinegar to gently clean the ultrasonic vibrating plate.
- Cleaning the Cover: Wipe the inside and outside of the cover with a soft, damp cloth.
- Drying: Allow all parts to air dry completely before reassembling or storing.
Note: Do not use detergents, abrasive cleaners, or corrosive liquids. Do not submerge the main unit in water.
Troubleshooting
If you encounter issues with your diffuser, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist | Insufficient water; water level too high; ultrasonic plate dirty; air outlet blocked. | Add water to appropriate level; ensure water is below max line; clean ultrasonic plate; check for blockages. |
| Diffuser does not turn on | No power; adapter not connected properly. | Check power outlet; ensure adapter is securely plugged into diffuser and wall. |
| Light not working | Light function not activated; internal issue. | Press the Light Button to activate; if still not working, contact customer support. |
| Unusual noise | Water level too low; diffuser not on a flat surface. | Add water; place diffuser on a stable, flat surface. |
| Water leakage | Overfilled water tank; cover not properly sealed. | Ensure water is below max line; re-seat the top cover firmly. |
Specifications
| Feature | Specification |
|---|---|
| Model | TomCare 400ml Wood Grain Aromatherapy Diffuser |
| Dimensions | Approx. 168.5mm (Diameter) x 215mm (Height) |
| Weight (Excluding adapter) | Approx. 468g |
| Power Input/Output | AC100-240V 50/60Hz / DC24V 650mA |
| Rated Power | Approx. 14W |
| Power Cord Length | Approx. 170cm |
| Timer Settings | 1H / 3H / 6H / ON (Continuous) / OFF |
| Light Modes | 7 Color Changing / Fixed Color (Bright/Dim) / OFF |
| Water Tank Capacity | Approx. 400ml |
| Material | PP/ABS/PC (Wood Grain Finish) |
| Working Frequency | 2.4MHz |
| Automatic Shut-Off | Yes, when water runs out |
| Runtime | Up to 8 hours (continuous mist) |
Warranty Information
This TomCare Essential Oil Diffuser comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage caused by misuse, accident, unauthorized modification, or failure to follow the instructions in this manual.
Please retain your proof of purchase for warranty claims.
Customer Support
If you have any questions, concerns, or require assistance with your TomCare Essential Oil Diffuser, please contact our customer support team. Refer to your purchase platform or product packaging for specific contact details.