Introduction
Thank you for choosing the HomBreez MHD-02 Portable Aromatherapy Diffuser and Humidifier. This device combines the benefits of aromatherapy with humidification, featuring a rechargeable battery for cordless use, two mist modes, LED lighting, and an automatic shut-off function. Please read this manual carefully before use to ensure proper operation and maintenance.

Image: The HomBreez diffuser on a nightstand, demonstrating its aromatherapy and humidification capabilities with a blue LED light.
Important Safety Information
To ensure safe operation and prevent damage, please observe the following precautions:
- Avoid direct skin contact with undiluted essential oils.
- Keep the device out of reach of children and pets.
- Ensure proper ventilation when using the diffuser.
- Do not ingest essential oils.
- Always follow recommended dilution ratios for essential oils.
- If you experience any adverse reactions, discontinue use and consult a healthcare professional.
- Use only clean tap water or distilled water. Do not use hot water.
- Do not exceed the maximum water fill line.
- Do not tilt or move the diffuser when it is operating or contains water.
- Unplug the device before cleaning or refilling.
Package Contents
Please check the package for the following items:
- HomBreez MHD-02 Diffuser
- USB Charging Cable
- User Manual
Setup
1. Placement
Place the diffuser on a flat, stable surface away from direct sunlight, heat sources, and electronic devices. Ensure there is adequate space around the diffuser for mist dispersal.
2. Filling the Water Tank
- Gently twist the top cover counter-clockwise to remove it.
- Pour clean tap water or distilled water into the water tank. Do not exceed the "MAX WATER LINE" indicated inside the tank. The capacity is 280ml.
- If desired, add 2-3 drops of your preferred essential oil directly into the water tank.
- Replace the top cover by aligning it and twisting clockwise until secure.

Image: Illustrates the one-step top-fill process for the diffuser, showing water being poured into the tank up to the maximum fill line.

Image: A hand demonstrating the twisting motion to open or close the diffuser's top cover.
3. Charging the Device
Before first use, fully charge the diffuser using the provided USB cable. Connect the micro-USB end to the diffuser's charging port and the USB-A end to a compatible power adapter (not included) or a computer USB port. The LED indicator will show charging status (e.g., red for charging, off when fully charged).
Operating Instructions
1. Power On/Off and Mist Modes
- To Turn On: Quickly double-click the power button. The diffuser will start in continuous mist mode (High setting).
- To Switch to Intermittent Mist: Press the power button once. The diffuser will switch to intermittent mist mode (Low setting).
- To Turn Off Mist Function: Press the power button a third time. The mist function will turn off, but the LED light may remain on.
- To Turn Off Completely: Press and hold the power button for 3 seconds.

Image: Visual guide to the two mist settings: continuous mist for 3-4 hours and intermittent mist for 6-8 hours.
2. LED Light Control
The diffuser features a soothing LED light. To control the light:
- Press the light button (usually a separate button or a long press on the power button, refer to device markings) to cycle through colors or set a specific color.
- Press and hold the light button to turn the light off.

Image: The diffuser showcasing its features including a switchable night light, low noise operation, and auto shut-off for safety.
3. Automatic Shut-Off
For safety and energy efficiency, the diffuser is equipped with an automatic shut-off function. It will automatically power off when the water level in the tank becomes too low.
Maintenance
Regular cleaning helps ensure optimal performance and extends the lifespan of your diffuser.
1. Cleaning the Water Tank
- Ensure the diffuser is turned off and unplugged.
- Remove the top cover and empty any remaining water from the tank.
- Wipe the inside of the water tank with a soft, damp cloth. For stubborn residue or essential oil buildup, use a cotton swab dipped in white vinegar.
- Rinse the tank thoroughly with clean water, being careful not to get water into the air outlet.
- Dry the tank completely before reassembling or refilling.
2. Cleaning the Mist Outlet
Gently wipe the mist outlet with a cotton swab to remove any mineral deposits or essential oil residue that may accumulate and affect mist output.
3. Filter/Wick Replacement
The diffuser uses a cotton wick. If mist output decreases or the diffuser stops producing mist, the wick may need replacement. Refer to the product packaging or manufacturer's website for compatible replacement wicks and instructions.
4. Storage
When not in use for an extended period, clean the diffuser thoroughly, ensure it is completely dry, and store it in a cool, dry place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist |
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| Device not turning on |
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| LED light not working |
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| Unpleasant odor from mist |
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Specifications
| Feature | Detail |
|---|---|
| Brand | HomBreez |
| Model Name | MHD-02 |
| Color | Black |
| Material | Plastic |
| Capacity | 280 Milliliters |
| Power Source | Battery Powered |
| Special Features | Aromatherapy, Automatic Shut-Off, Cool Mist, Cordless, Silent Operation, LED Light |
| Auto Shutoff | Yes |
| Product Dimensions | 3 x 5 x 3 inches |
| Item Weight | 11.3 ounces |
Warranty and Support
HomBreez products are manufactured with quality standards. For any questions, concerns, or support needs regarding your MHD-02 diffuser, please refer to your purchase documentation or contact HomBreez customer service through the retailer where the product was purchased. Please retain your proof of purchase for warranty claims.