1. Introduction
Thank you for choosing the SENMUL 180ml Classic Flame Black Air Aroma Diffuser Humidifier. This device combines the benefits of an aroma diffuser and a humidifier with a unique, visually appealing flame effect. It is designed to enhance your environment with soothing aromas and optimal humidity, creating a relaxing atmosphere in your home, office, or personal space. This manual provides essential information for safe and effective use.

The SENMUL 180ml Classic Flame Black Air Aroma Diffuser Humidifier.
2. Package Contents
- SENMUL 180ml Classic Flame Black Air Aroma Diffuser Humidifier Unit
- USB Power Cable
- User Manual
3. Specifications
| Brand | SENMUL |
| Model Name | DQ701A |
| Color | Black |
| Material | Plastic |
| Capacity | 180 Milliliters |
| Power Source | USB |
| Wattage | 3 watts |
| Special Features | 7 Changing Colors, Innovative Design, Reduce Stress, Silent Operation, Simulated Fireplace Flame, Auto Shutoff |
| Product Dimensions | 3"L x 4"W x 6"H |
| Item Weight | 3.53 ounces (100 Grams) |

Product dimensions: 17.1cm (6.73in) length, 7.5cm (2.95in) width, 10.1cm (3.97in) height.
4. Safety Instructions
- Always follow the directions for use.
- Avoid direct skin contact with undiluted essential oils.
- Keep out of reach of children and pets.
- Ensure proper ventilation during use.
- Do not ingest essential oils. If irritation occurs, discontinue use and seek medical advice.
- Do not exceed the maximum water line (180ml) to prevent overflow and damage.
- The device features automatic power-off when water is low for safety.
- Use an appropriate USB power adapter. A low-amperage adapter can cause overheating and damage to the cord.
- Avoid water contact with the USB cable connection to prevent rusting and power failure.
- Some essential oils may react with plastic materials over time. Use caution and monitor the device for any signs of material degradation.
5. Setup
- Placement: Place the diffuser on a stable, flat surface away from direct sunlight, heat sources, and electronic devices.
- Remove Cover: Gently lift the top cover of the diffuser.
- Fill Water: Fill the water tank with clean tap water up to the 'Max line' indicator (180ml). Do not overfill.
- Add Essential Oil (Optional): Add 1-2 drops of your preferred aromatherapy essential oil into the water tank. Adjust the quantity based on your preference and room size.
- Replace Cover: Carefully place the top cover back onto the diffuser, ensuring it is securely seated.
- Connect Power: Connect the provided USB power cable to the diffuser and then to a suitable USB power adapter (not included).

Add 1-2 drops of your favorite essential oil into the water tank for aromatherapy.
6. Operating Instructions
The diffuser features two control buttons on the front:
- Left Button (Mist/Power):
- Press once to turn on the diffuser and mist output.
- Press again to turn off the diffuser and mist output.
- Right Button (Light):
- Press once to turn on the yellow flame light.
- Press a second time to activate the 7-color cycling mode.
- Press a third time to fix the current color.
- Press a fourth time to turn off the light.

The diffuser features 7 optional flame colors, creating a dynamic visual effect.

The touchable flame effect provides a realistic fire ambiance without heat.

Designed for ultra-quiet operation, making it ideal for bedrooms and offices.

The diffuser automatically shuts off when the water level is low, ensuring safe operation.

Functions as both a humidifier and an aroma diffuser, enhancing air quality and ambiance.
Official Product Video
Watch this official video to see the SENMUL flame oil diffuser in action, showcasing its unique flame effect and mist output.
7. Maintenance
Regular cleaning is essential for optimal performance and longevity of your diffuser.
- Unplug: Always unplug the diffuser from the power source before cleaning.
- Empty Water: Empty any remaining water from the tank.
- Wipe Tank: Wipe the inside of the water tank with a soft cloth or sponge. For stubborn residue, use a small amount of white vinegar diluted with water.
- Clean Ultrasonic Plate: Gently clean the ultrasonic plate (the small disc at the bottom of the tank) with a cotton swab dipped in white vinegar. Do not scrub or use abrasive materials.
- Avoid Water in Air Outlet: Ensure no water enters the air outlet during cleaning.
- Dry Thoroughly: Allow all parts to air dry completely before reassembling or storing the diffuser.
- Frequency: Clean the diffuser after every 5-6 uses or every 3-5 days, especially if using essential oils regularly.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist | Low water level; clogged ultrasonic plate; diffuser not powered on. | Ensure water is above the minimum line; clean the ultrasonic plate; check power connection and press the left button. |
| Light not working | Light mode off; power issue. | Press the right button to cycle through light modes; check power connection. |
| Water leaking | Overfilled water tank; cover not properly seated. | Do not exceed the 'Max line'; ensure the top cover is securely in place. |
| Plastic degradation/gooey residue | Reaction with certain essential oils. | Use only high-quality, pure essential oils. Avoid direct contact of undiluted oils with plastic surfaces. Clean regularly. If degradation occurs, discontinue use. |
| Power cord overheating/melting | Incompatible USB power adapter; water contact with port. | Use a USB power adapter with appropriate amperage (e.g., 5V/1A or higher). Ensure the USB port and cable remain dry. |
9. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact SENMUL customer service directly. Keep your purchase receipt as proof of purchase.