Introduction
This manual provides important information regarding the safe operation, setup, maintenance, and troubleshooting of your Beurer LB12 Mini Air Humidifier. Please read these instructions carefully before first use and keep them for future reference. The Beurer LB12 Mini Air Humidifier is designed to increase humidity in small rooms, improving air quality and comfort.
Safety Instructions
Observe the following safety precautions to ensure safe operation and prevent damage:
- Always use clean, fresh water in the humidifier. Distilled or demineralized water is recommended to prevent mineral buildup.
- Do not immerse the main unit in water or other liquids.
- Keep the appliance out of reach of children and pets.
- Unplug the humidifier from the power outlet before cleaning, filling, or when not in use.
- Ensure the humidifier is placed on a stable, flat, and water-resistant surface.
- Do not block the mist outlet.
- Do not use essential oils or other additives directly in the water tank unless specifically designed for this unit, as it may damage the ultrasonic membrane.
- If the power cord or adapter is damaged, do not use the appliance. Contact customer service for replacement.
Package Contents
Verify that all items are present in the package:
- Beurer LB12 Mini Air Humidifier Main Unit
- Power Adapter
- Water Bottle Adapter
- Cleaning Brush

Image: All components of the Beurer LB12 Mini Air Humidifier laid out, including the main unit, power adapter, water bottle adapter, and cleaning brush.
Setup
Follow these steps to set up your humidifier:
- Choose a Location: Place the humidifier on a firm, flat, and water-resistant surface, away from direct sunlight, heat sources, and electronic devices. Ensure there is adequate space around the unit for mist dispersal.
- Prepare Water Bottle: Fill a standard plastic water bottle (up to 0.5 liters capacity is recommended) with clean, cool tap water or distilled water. Screw the water bottle adapter securely onto the filled bottle.
- Attach Water Bottle: Invert the prepared water bottle and carefully place it into the designated opening on the main humidifier unit. Ensure it is seated firmly and water begins to flow into the unit's reservoir.
- Connect Power: Insert the power adapter cable into the power input port on the side of the humidifier unit. Then, plug the power adapter into a suitable electrical outlet.

Image: The Beurer LB12 Mini Air Humidifier with a water bottle attached and mist being emitted, indicating it is in operation.
Operating
To operate your Beurer LB12 Mini Air Humidifier:
- Power On and Adjust Mist: Once the unit is set up and plugged in, turn the control knob located on the side of the unit clockwise. The blue LED light will illuminate, and mist will begin to emit from the top. Continue turning the knob to adjust the mist output from minimum (Min) to maximum (Max) intensity.
- Automatic Shut-off: The humidifier will automatically switch off when the water bottle is empty. The blue LED light will change to red, indicating that the water needs to be refilled.
- Power Off: To turn off the humidifier, turn the control knob counter-clockwise until it clicks into the 'Off' position and the LED light extinguishes.

Image: The Beurer LB12 Mini Air Humidifier actively producing mist, demonstrating its humidifying function.
Maintenance
Regular cleaning ensures optimal performance and extends the life of your humidifier:
- Daily Cleaning: Unplug the unit and empty any remaining water from the reservoir. Wipe the reservoir and mist outlet with a soft, damp cloth.
- Weekly Cleaning (Descaling): If using tap water, mineral deposits may accumulate. To descale, mix a solution of equal parts white vinegar and water. Pour the solution into the reservoir and let it sit for 15-20 minutes. Use the provided cleaning brush to gently scrub any mineral buildup on the ultrasonic membrane and other surfaces. Rinse thoroughly with clean water.
- Storage: If storing the humidifier for an extended period, ensure it is clean and completely dry. Store in a cool, dry place.

Image: The various parts of the Beurer LB12 Mini Air Humidifier, including the cleaning brush, which is essential for maintenance.
Troubleshooting
Refer to the table below for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist is being produced. | Unit is not plugged in or turned on. Water bottle is empty. Ultrasonic membrane is dirty. | Ensure power adapter is connected and unit is turned on. Refill the water bottle. Clean the ultrasonic membrane as per maintenance instructions. |
| Weak mist output. | Low water level. Mineral buildup on membrane. Mist output setting is too low. | Refill water bottle. Clean the ultrasonic membrane. Adjust the control knob to a higher setting. |
| Unpleasant odor from mist. | Stagnant water or dirty reservoir. | Empty and clean the water reservoir and bottle thoroughly. Use fresh water. |
| Water leakage. | Water bottle not properly seated or adapter not tight. | Ensure the water bottle adapter is tightly screwed onto the bottle and the bottle is correctly inserted into the unit. |
Specifications
- Model: LB12 (680.05)
- Brand: Beurer
- Operation Mode: Ultrasonic
- Recommended Room Area: Up to 20 square meters
- Water Tank Capacity: Compatible with standard 0.5 liter water bottles
- Voltage: 24 Volts
- Wattage: 12 watts
- Item Weight: Approximately 300 grams (10.6 ounces)
- Product Dimensions: Approximately 19.69 x 19.69 x 11.02 inches
- Control Method: Rotary Knob (Touch)
- UPC: 803096466008
Warranty and Support
For warranty information, product support, or to purchase replacement parts, please refer to the warranty card included with your product or visit the official Beurer website. Keep your proof of purchase for warranty claims.
Manufacturer: Beurer
Website: Visit the Beurer Store on Amazon





