1. Introduction
Thank you for choosing the MIJIA Mist Free Humidifier 3 (400). This device is designed to provide efficient and healthy humidification for your home, featuring a fog-free evaporation system, multi-effect antibacterial properties, and smart controls. Please read this manual thoroughly before use to ensure proper operation and maintenance.

2. Setup
2.1 Unpacking
Carefully remove the humidifier and all accessories from the packaging. Retain the packaging for future storage or transport.
2.2 Placement
Place the humidifier on a flat, stable surface, such as a tabletop. Ensure it is away from direct sunlight, heat sources, and electronic devices. The humidifier is designed for tabletop or portable use.
2.3 Power Connection
Connect the power adapter to the humidifier and then plug it into a standard 220V A.C. power outlet (EU Plug Type). Ensure the voltage matches your local power supply.
2.4 Water Filling
The humidifier features convenient top-fill water addition. You do not need to lift the lid. Simply pour clean tap water directly into the top grille of the humidifier. It is recommended to add water when the power is off.

2.5 Initial Power On
After filling with water and connecting to power, press the power button to turn on the humidifier. The smart screen on top will display the current humidity level.
2.6 Smart Interconnection (Mijia APP)
For advanced control and intelligent scene linking with other smart home equipment (e.g., air conditioning, electric heaters), download and connect the humidifier to the Mijia APP. Refer to the app's instructions for pairing.

3. Operating Instructions
3.1 Power On/Off
Press the power button on the device or use the remote control/Mijia APP to turn the humidifier on or off.
3.2 Humidity Control
The humidifier supports touch control on the device, remote control, and control via the Mijia APP. You can adjust the desired humidity level. The top smart screen provides an intuitive display of real-time humidity.

3.3 Constant Humidity Mode
The device features an automatic induction adjustment system that maintains a comfortable 55% RH humidity level. This creates an optimal and moist environment.

3.4 Sleep Mode
In sleep mode, the humidifier operates at a low noise level of 32dB(A), ensuring minimal disturbance. The brightness of the control panel is automatically dimmed for a comfortable sleeping environment.

3.5 Aromatherapy (Optional)
The humidifier can also function as an aromatherapy diffuser. If using essential oils, please refer to specific instructions for adding them, typically to a dedicated essential oil tray if present, or by adding a few drops to the water tank if compatible. (Note: Specific instructions for aromatherapy oil addition are not detailed in the provided information. Please consult the product packaging or manufacturer's website for precise guidance.)
3.6 Disinfection Function
The humidifier incorporates a disinfection function, contributing to healthier air quality.
4. Maintenance
4.1 Water Tank Cleaning
The humidifier features a split large water tank design, making cleaning more convenient. Regularly clean the water tank to prevent mineral buildup and ensure optimal performance.
4.2 Filter Element Maintenance
The device uses a suspended antibacterial filter element that automatically air-dries after humidification to reduce mildew. The recommended replacement cycle for the filter element is 3-6 months.

4.3 General Cleaning
Wipe the exterior of the humidifier with a soft, damp cloth. Do not use abrasive cleaners or solvents.
5. Troubleshooting
5.1 Humidifier Stops Operating / No Mist
- Check Water Level: The humidifier has a water-shortage power-off protection feature. If the water level is too low, the device will automatically turn off. Refill the water tank.
- Power Connection: Ensure the power adapter is securely plugged into both the humidifier and the wall outlet.
5.2 Difficulty Connecting to Mijia APP
If you experience issues connecting to the Mijia APP, especially regarding regional versions (e.g., EU vs. Chinese versions), ensure your app's region settings are correctly configured or try resetting the humidifier's network connection as per app instructions. Compatibility may vary between regional app versions.
5.3 Unusual Noise
Ensure the humidifier is placed on a flat, stable surface. Check if the water tank or filter element is properly seated. If the noise persists, contact customer support.
6. Specifications
| Feature | Specification |
|---|---|
| Brand Name | XIAOMI |
| Model | Mist Free Humidifier 3 (400) |
| Humidifying Capacity | 400ml/h |
| Water Tank Capacity | 4.1-6L (commonly referred to as 4L) |
| Noise Level | <36dB (32dB(A) in sleep mode) |
| Coverage Area | 41-60㎡ |
| Power (W) | 9W |
| Voltage | 220 V |
| Power Type | A.C. Source |
| Operation Method | Remote Control, Touch Control |
| Humidity Control | Touch Control |
| Function | Disinfection, Humidification |
| Mist Outlet Quantity | ONE |
| Humidification Method | Non-mist |
| Timing Function | Yes |
| Water-shortage Power-off Protection | Yes |
| Installation | Tabletop / Portable |
| Certification | CE |
| Plug Type | EU |
| Origin | Mainland China |
| Use | Household |
| Shape | Classic Columnar |
| High-concerned chemical | None |
7. User Tips
- Always ensure the humidifier is powered off before adding water to prevent any potential issues.
- For optimal sleep quality, utilize the dedicated sleep mode which dims the display and maintains ultra-quiet operation.
- Regularly check the water level to avoid interruptions, as the device will automatically power off when water is low.
- To prolong the life of the antibacterial filter, ensure it air-dries automatically after use, as designed by the suspended filter element feature.
- Consider using the Mijia APP for seamless integration with other smart home devices and enhanced control options.
8. Warranty and Support
This product is covered by a free returns policy within 90 days of purchase. For specific warranty details, technical support, or service inquiries, please refer to the official XIAOMI website or contact your retailer's customer service. Keep your purchase receipt as proof of purchase.





