1. Product Overview
The MIPOW Miffy Cool Mist Humidifier is an ultrasonic device designed to add moisture to the air, featuring a night light and a compact design. It is suitable for bedrooms, nurseries, and offices.

Figure 1: MIPOW Miffy Cool Mist Humidifier (Model BTA900M)
2. Package Contents
- MIPOW Miffy Cool Mist Humidifier Unit
- USB-C Cable
- Cotton Swabs (pre-installed and extra)
- User Manual

Figure 2: Humidifier components
3. Setup Instructions
- Prepare the Cotton Swab: Before first use, remove the cotton swab from the humidifier and soak it completely in water for 3-5 minutes. This ensures proper mist production.
- Fill the Water Tank: Remove the top cover of the humidifier. Fill the 380ml water tank with clean tap water. Do not exceed the maximum fill line.
- Reassemble the Humidifier: Place the soaked cotton swab back into its housing. Securely replace the top cover onto the water tank.
- Connect Power: Plug the provided USB-C cable into the humidifier's USB-C port and connect the other end to a compatible USB power source (e.g., laptop, power bank, wall adapter).
Video 1: Miffy Humidifier Use Tutorial - Demonstrates initial setup and water filling.
Video 2: Miffy Humidifier Usage - Shows the humidifier in operation and basic functions.
4. Operating Instructions
4.1 Mist Modes
The humidifier features two working modes, controlled by the power button:
- Continuous Misting: Press the power button once for continuous mist output.
- Intermittent Misting: Press the power button a second time for intermittent mist (3 seconds on / 3 seconds off).
- Turn Off: Press the power button a third time to turn off the mist function.
4.2 Night Light Function
The humidifier includes a night light feature:
- Turn On/Off Night Light: Long press the power button for 2 seconds to cycle the night light on or off.
4.3 Automatic Shut-off
For safety and to prevent dry burning, the humidifier automatically shuts down when the water level is low or after 8 hours of continuous spray. To resume operation, refill the water tank and restart the device.

Figure 3: Humidifier producing fine mist

Figure 4: Humidifier with night light on
Video 3: MIPOW X Miffy Cool Mist Humidifier - A brief overview of the product's features.
5. Maintenance
5.1 Cleaning the Water Tank
Regular cleaning of the water tank is recommended to prevent mineral buildup and maintain optimal performance. Disconnect the power before cleaning. Wipe the inside of the tank with a soft cloth and mild detergent, then rinse thoroughly.
5.2 Replacing Cotton Swabs
The humidifier uses cotton swabs for mist production. If mist output decreases or stops, the cotton swab may need replacement. The package includes extra cotton swabs. Ensure the new swab is fully soaked in water before installation.
6. Troubleshooting
- No Mist Output:
- Check if the water tank is filled to the appropriate level.
- Ensure the cotton swab is properly installed and fully soaked in water. A dry cotton swab will prevent mist production.
- Verify the humidifier is connected to a power source and turned on.
- Humidifier Stops Unexpectedly:
- The device has an automatic shut-off feature when water levels are low or after 8 hours of operation. Refill the tank and restart if necessary.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | MIPOW |
| Model Name | BTA900M |
| Operation Mode | Ultrasonic |
| Water Tank Capacity | 380ml |
| Special Features | Night Light, Quiet Operation |
| Product Dimensions | 3.25"D x 3.27"W x 6.24"H |
| Item Weight | 0.8 Pounds (12.9 ounces) |
| Power Input | USB-C (Type-C), 5 Volts |
| Room Type | Bedroom, Nursery, Office |

Figure 5: Product Dimensions
8. Warranty and Support
MIPOW provides a one-year warranty return service for this product. For any inquiries or assistance, a professional after-sales customer service team is available 24 hours a day.
For support, please refer to the contact information provided with your purchase or visit the official MIPOW website.
