1. Important Safety Instructions
Please read these instructions carefully before using the appliance and keep them for future reference. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always use essential oils as indicated by their manufacturer.
- Avoid direct skin contact with undiluted essential oils.
- Keep the device out of reach of children and pets.
- Ensure adequate ventilation in the room during use.
- Do not operate the device while sleeping or unattended, especially if the LED light function is active.
- Place the humidifier on a stable, flat surface, away from direct sunlight, heat sources, and electronic devices.
- Do not immerse the device in water or any other liquid.
- Use only the provided power adapter.
- Unplug the device before cleaning or refilling.
2. Product Overview
The Cecotec Pure Aroma 300 Yang is an ultrasonic humidifier and aroma diffuser designed to improve air quality and create a pleasant atmosphere in your home. It features a sleek wood-effect design, a 300 ml water tank, a timer, and 7 LED light colors.
Key Features:
- Ultrasonic Humidification: Produces a cold, continuous mist to reduce environmental dryness.
- Aroma Diffusion: Functions as an aroma diffuser to spread essential oil fragrances.
- Large Capacity: 300 ml water tank for extended operation.
- Timer Function: Adjustable timer up to 6 hours with automatic shut-off.
- 7 LED Colors: Manual and automatic control of 7 LED colors, usable as a night light.
- Coverage Area: Suitable for rooms up to 15 m².
- Ultra-Silent Operation: Advanced ultrasonic technology ensures quiet performance.
Components:
The device consists of a base unit with controls, a water tank, and a decorative top cover.

Figure 1: Cecotec Pure Aroma 300 Yang Humidifier and Diffuser in operation, emitting a fine mist.
3. Setup
- Unpack: Carefully remove the humidifier and all accessories from the packaging.
- Placement: Place the device on a stable, level surface. Ensure it is not near any heat sources or direct sunlight.
- Connect Power: Locate the power input on the bottom of the device and connect the provided power adapter.
- Remove Cover: Gently lift the top cover of the diffuser to access the water tank.
- Fill Water Tank: Using a measuring cup, fill the water tank with clean tap water up to the 300 ml maximum fill line. Do not overfill.
- Add Essential Oils (Optional): If using for aromatherapy, add 10-15 drops of your preferred essential oil directly into the water tank. Adjust the quantity based on desired intensity.
- Replace Cover: Carefully place the top cover back onto the base unit, ensuring it is properly aligned.

Figure 2: Illustrates the process of filling the water tank with water.

Figure 3: Close-up view of the diffuser, highlighting the area where essential oils can be added.
4. Operating Instructions
The Cecotec Pure Aroma 300 Yang features intuitive controls for mist and light functions.
Mist Control:
- Power On/Off: Press the 'Mist' button once to turn on the continuous mist. Press again to turn off.
- Timer Settings: While the mist is on, press the 'Mist' button repeatedly to cycle through timer options: 1 hour, 3 hours, 6 hours, or continuous operation (ON). The device will automatically shut off when the selected time expires or when the water level is low.
LED Light Control:
- Turn On/Off: Press the 'Light' button once to turn on the LED light. Press and hold for 2 seconds to turn off.
- Color Selection: When the light is on, press the 'Light' button repeatedly to cycle through the 7 available colors. You can choose a fixed color or allow it to cycle automatically.

Figure 4: The diffuser operating, showing the mist output and its elegant design.
5. Maintenance and Care
Regular cleaning ensures optimal performance and extends the lifespan of your humidifier and diffuser.
- Unplug: Always unplug the device from the power outlet before cleaning.
- Empty Water: Remove the top cover and carefully empty any remaining water from the tank.
- Clean Tank: Wipe the inside of the water tank with a soft, damp cloth. For stubborn residue, use a small amount of mild detergent and rinse thoroughly. Avoid abrasive cleaners.
- Clean Ultrasonic Plate: Gently wipe the ultrasonic vibrating plate (located at the bottom of the water tank) with a cotton swab dipped in white vinegar. Do not scratch or apply excessive pressure.
- Dry: Allow all parts to air dry completely before reassembling or storing the device.
- Frequency: Clean the device at least once a week, or more frequently if used daily or with strong essential oils.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist is being produced. | Low water level. Device not plugged in. Ultrasonic plate is dirty. | Refill the water tank. Ensure the power adapter is securely connected. Clean the ultrasonic plate as per maintenance instructions. |
| Weak mist output. | Insufficient water. Dirty ultrasonic plate. Air vent blocked. | Ensure water level is adequate. Clean the ultrasonic plate. Check for any obstructions in the air vent. |
| Device turns off unexpectedly. | Water tank is empty. Timer setting expired. | Refill the water tank. Reset the timer or select continuous mode. |
| Unpleasant odor. | Stale water or residue. | Empty and clean the water tank thoroughly. Use fresh water. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Cecotec |
| Model Number | 05282 |
| Color | Wood |
| Product Dimensions | 16.5 x 17 x 17 cm |
| Weight | 500 g |
| Water Tank Capacity | 300 ml |
| Power | 10 W |
| Material | Plastic |
| Automatic Shut-off | Yes |
| Maximum Operating Time | 6 hours |
| Special Feature | Diffuser, Humidifier, 7 LED Colors |
| Recommended Room Area | Up to 15 m² |
8. Warranty and Support
This product comes with a standard manufacturer's warranty. For detailed warranty information, please refer to the warranty card included in the product packaging or visit the official Cecotec website. For technical support, troubleshooting assistance, or to inquire about spare parts, please contact Cecotec customer service.
Contact information can typically be found on the product packaging or the official brand website: Cecotec Store on Amazon





