1. Product Overview
The Woyuosn Cozy Hoome 3-in-1 Diffuser combines an ultrasonic essential oil diffuser, a flame effect humidifier, and a Himalayan salt rock aromatherapy unit. It is designed to enhance air quality and create a relaxing ambiance.

Image: The Woyuosn Cozy Hoome 3-in-1 Diffuser, showcasing its wood grain finish, flame effect, and Himalayan salt rock tray. Various light colors are displayed below the main unit.
2. Package Contents
- Woyuosn Cozy Hoome 3-in-1 Diffuser Unit
- Himalayan Salt Rocks
- Power Adapter
- User Manual
3. Setup Instructions
- Placement: Place the diffuser on a flat, stable surface away from direct sunlight, heat sources, and electronic devices. Ensure it is out of reach of children and pets.
- Open the Lid: Gently remove the top cover of the diffuser.
- Add Water: Fill the water tank with clean tap water or distilled water up to the maximum water level line (200ML). Do not exceed the MAX line to prevent leakage or malfunction.
- Add Essential Oils (Optional): Add 2-3 drops of your preferred essential oil directly into the water tank. Adjust the quantity based on personal preference.
- Add Himalayan Salt Rocks: Carefully place the provided Himalayan salt rocks into the designated tray at the front of the diffuser. Ensure they are evenly distributed.

Image: A close-up view of Himalayan salt crystals, illustrating the type of rocks used in the diffuser's aromatherapy tray.
- Close the Lid: Replace the top cover securely.
- Connect Power: Plug the power adapter into the diffuser's power input port, then plug the adapter into a standard electrical outlet.
4. Operating Instructions
The diffuser features two control buttons: 'LIGHT' and 'MIST'.

Image: The front view of the diffuser highlighting the 'LIGHT' and 'MIST' buttons, along with product dimensions and indicators for mist modes.
4.1 Mist Control
- Press the 'MIST' button once for continuous mist mode.
- Press the 'MIST' button a second time for intermittent mist mode (e.g., 30 seconds on, 30 seconds off).
- Press the 'MIST' button a third time to turn off the mist function.
4.2 Light Control (Flame Effect & Ambient Colors)
- Press the 'LIGHT' button once to turn on the flame effect.
- Press the 'LIGHT' button a second time to activate the 7-color cycling ambient light.
- Press the 'LIGHT' button repeatedly to cycle through individual colors (red, orange, yellow, green, blue, indigo, violet).
- Press and hold the 'LIGHT' button for 2 seconds to turn off all lights.

Image: The diffuser showcasing its ability to display 7 different ambient light colors, including the flame effect.
4.3 Timer Settings
The diffuser may include preset timer functions (e.g., 3H, 6H) which can be activated by specific button presses (refer to the 'MIST' button functionality for timer options if available, as some models integrate timers with mist settings).
4.4 Automatic Shut-off
The diffuser is equipped with an automatic shut-off feature for safety. When the water level is too low, the unit will automatically power off to prevent damage.

Image: A visual representation indicating the correct water fill level (below max line) and the waterless auto-off function for safety.
5. Maintenance
5.1 Cleaning the Water Tank
- Unplug the diffuser and remove the top cover.
- Empty any remaining water from the tank.
- Wipe the inside of the water tank with a soft cloth. For stubborn residue, use a cotton swab dipped in white vinegar.
- Rinse thoroughly with clean water, avoiding contact with the air outlet.
- Dry completely before next use.
5.2 Cleaning the Ultrasonic Plate
- The ultrasonic plate is located at the bottom of the water tank.
- If mineral deposits accumulate, gently wipe the plate with a cotton swab dipped in white vinegar.
- Do not use harsh chemicals or abrasive materials.
5.3 Cleaning Himalayan Salt Rocks
- Periodically remove the salt rocks from the tray.
- Wipe the salt rocks with a dry cloth to remove any dust. Do not wash them with water, as salt is water-soluble.
- Ensure the salt rock tray is clean and dry before returning the rocks.
5.4 Storage
When not in use for an extended period, clean and dry the diffuser thoroughly. Store it in a cool, dry place away from direct sunlight.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist |
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| Water leakage |
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| Light not working |
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| Unusual noise |
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7. Specifications
- Model Name: Cozy Hoome
- Brand: Woyuosn
- Dimensions: 7.09"L x 3.15"W x 4.72"H (180mm L x 80mm W x 120mm H)
- Water Tank Capacity: 200 Milliliters
- Power Source: Corded Electric
- Wattage: 6 watts
- Material: Acrylonitrile Butadiene Styrene (ABS), Polypropylene (PP), BPA Free
- Special Features: Multiple Light Settings, Automatic Shut-off
8. Warranty and Support
For any questions, concerns, or support regarding your Woyuosn Cozy Hoome 3-in-1 Diffuser, please contact the manufacturer or your retailer. Please retain your proof of purchase for warranty claims.