BRUNO BDE057
BRUNO CUBE MIST USB Rechargeable Ultrasonic Humidifier
Model: BDE057-PK
Brand: BRUNO
1. Important Safety Instructions
Please read all instructions carefully before using the BRUNO CUBE MIST Humidifier. Retain this manual for future reference.
- Do not immerse the unit in water or other liquids.
- Use only clean tap water or mineral water. Do not use distilled water, essential oils, or other chemicals directly in the water tank, as this may damage the unit or affect mist output. Only use commercially available aroma water.
- Keep out of reach of children and pets.
- Do not block the mist outlet.
- Ensure the unit is placed on a stable, flat surface.
- Unplug the unit before cleaning or when not in use for extended periods.
- Do not attempt to repair or disassemble the unit yourself. Contact customer support for assistance.
- Avoid placing the humidifier near heat sources or in direct sunlight.
- Use only the provided USB cable for charging.
2. Product Overview
The BRUNO CUBE MIST is a compact, rechargeable ultrasonic humidifier designed for personal use. It features an LED light and supports both continuous and intermittent mist modes.
Package Contents
- BRUNO CUBE MIST Humidifier (Main Unit)
- USB Cable
- Water Supply Core x 3 (1 pre-installed, 2 spare)
- User Manual (this document)

Image: The BRUNO CUBE MIST Humidifier in its pink color variant, showcasing its compact, cube-like design with a mist outlet on top and a control button on the front.

Image: The included USB charging cable and two spare water supply cores, essential accessories for the humidifier's operation and maintenance.
3. Setup
3.1 Initial Charging
- Connect the small end of the provided USB cable to the charging port on the back of the humidifier.
- Connect the large end of the USB cable to a USB power adapter (DC5V 1A Max, not included) or a computer USB port.
- Charge the unit for approximately 3.5 hours for a full charge. The indicator light will show charging status (e.g., red for charging, off when fully charged).

Image: The BRUNO CUBE MIST Humidifier connected to a laptop via its USB cable for charging, demonstrating its portable charging capability.
3.2 Filling the Water Tank
- Gently twist and lift the top cover of the humidifier to remove it.
- Fill the water tank with clean tap water or mineral water. Do not exceed the 'MAX' fill line indicated inside the tank. The tank capacity is approximately 300ml.
- If using aroma water, add it to the water tank according to the aroma water product instructions. Do not use essential oils.
- Replace the top cover, ensuring it is securely seated.

Image: A hand pouring water from a measuring cup into the open water tank of the humidifier, illustrating the refilling process.

Image: A close-up view of the interior of the humidifier's water tank, clearly showing the 'MAX' fill line to prevent overfilling.
4. Operation
The humidifier features a single multi-function button on the front for controlling power, mist modes, and the LED light.
4.1 Power On/Off and Mist Modes
- First Press: Press the button once to turn on the humidifier in Continuous Mist Mode. The mist will be emitted continuously.
- Second Press: Press the button a second time to switch to Intermittent Mist Mode. The mist will be emitted in intervals (e.g., 3 seconds on, 3 seconds off).
- Third Press: Press the button a third time to turn off the humidifier.
4.2 LED Light Function
- Long Press (2 seconds): When the humidifier is operating (in either mist mode), press and hold the button for 2 seconds to turn on the LED light.
- Long Press Again (2 seconds): Press and hold the button for another 2 seconds to turn off the LED light.

Image: The BRUNO CUBE MIST Humidifier with its internal LED light illuminated, creating a soft glow through the side panels.
5. Maintenance
Regular cleaning and maintenance will ensure optimal performance and extend the lifespan of your humidifier.
5.1 Cleaning the Water Tank
- Turn off and unplug the humidifier.
- 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 mineral deposits, use a mild detergent and rinse thoroughly.
- Do not use abrasive cleaners or scrub brushes, as these can damage the tank surface.
- Allow the tank to air dry completely before reassembling or storing.
5.2 Replacing the Water Supply Core (Wick)
The water supply core (wick) should be replaced regularly, typically every 1-3 months depending on usage and water quality, or when mist output decreases significantly.
- Turn off and unplug the humidifier.
- Remove the top cover.
- Locate the plastic tube holding the water supply core. Gently pull it out.
- Remove the old water supply core from the tube and discard it.
- Insert a new water supply core into the plastic tube, ensuring it is fully seated.
- Reinsert the tube with the new core back into its position in the humidifier.
- Refill the water tank and allow the new wick to soak for 5-10 minutes before operating.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output |
|
|
| LED light not working |
|
|
| Unit not turning on |
|
|
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | BDE057 |
| Color | Pink |
| Humidification Method | Ultrasonic |
| Humidification Capacity | Approx. 30ml/h |
| Water Tank Capacity | Approx. 300ml |
| Operation Modes | Continuous / Intermittent |
| Power Input | DC5V 1A Max (USB rechargeable) |
| Charging Time | Approx. 3.5 hours (with 5V1A input) |
| Continuous Use Time | Approx. 3 hours |
| Material | ABS Resin |
| Dimensions | W80 x H134 x D80mm |
| Weight | Approx. 275g |
| Included Accessories | USB Cable, Water Supply Core x 3 |

Image: A diagram illustrating the dimensions of the BRUNO CUBE MIST Humidifier, showing its width, height, and depth.
8. Warranty and Support
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included in the original packaging for specific terms and conditions.
For technical support, troubleshooting assistance, or warranty claims, please contact the retailer or BRUNO customer service. Contact information can typically be found on the BRUNO official website or your purchase receipt.
Please have your model number (BDE057-PK) and proof of purchase ready when contacting support.
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