Product Overview
The Xiaomi Smart Humidifier 2 is designed to enhance your indoor air quality by releasing up to 350 mL of mist per hour. Featuring a large 4.5L tank capacity and an automatic mode to prevent excessive humidity, it offers convenient one-touch humidity control. Its sleek, modern design integrates seamlessly into any home or office environment.

Figure 1: Front view of the Xiaomi Smart Humidifier 2.
Safety Precautions
- Always place the humidifier on a flat, stable surface.
- Do not place the humidifier near heat sources or in direct sunlight.
- Ensure the power cord is not damaged and is properly connected to a compatible power outlet. Note: This product operates on 220 Volts. An appropriate voltage converter or adapter may be required for use in regions with different voltage standards (e.g., 110-120V in the US).
- Do not immerse the main unit in water or other liquids.
- Keep out of reach of children and pets.
- Use only clean, distilled, or demineralized water to prevent mineral buildup.
- Unplug the humidifier before cleaning or refilling.
Setup Guide
- Unpack: Carefully remove the humidifier and all accessories from the packaging.
- Placement: Place the humidifier on a firm, flat, and waterproof surface at least 15 cm (6 inches) away from walls and furniture. Ensure the mist outlet is not directed at walls or electronic devices.
- Fill Water Tank:
- Remove the top cover of the humidifier.
- Pour clean water directly into the water tank up to the "MAX" fill line. Do not exceed the maximum fill line.
- Replace the top cover securely.

Figure 2: Top view showing the water tank opening.
- Connect Power: Plug the power adapter into the power port at the back of the humidifier, then plug the other end into a suitable electrical outlet.
Operating Instructions
Power On/Off
Press the power button on the front panel to turn the humidifier on or off. The indicator light will illuminate when the device is active.
Mist Output Adjustment
Press the mist output button (usually indicated by mist icons) to cycle through different mist levels (e.g., low, medium, high). The corresponding indicator light will show the current setting.
Automatic Mode
The humidifier features an automatic mode that adjusts mist output to maintain optimal humidity levels, preventing excessive moisture buildup. Activate this mode via the control panel or the Mi Home app.
Smart Control with Mi Home App
For advanced control, download the Mi Home app from your smartphone's app store. Follow the in-app instructions to connect your Xiaomi Smart Humidifier 2. Through the app, you can:
- Set timers for operation.
- Adjust mist output levels remotely.
- Monitor current humidity levels.
- Access additional settings and features.

Figure 3: Humidifier in operation, releasing mist.
Maintenance
Regular maintenance ensures optimal performance and longevity of your humidifier.
Daily Maintenance
- Empty and rinse the water tank daily.
- Wipe down the mist outlet and exterior with a soft, damp cloth.
Weekly Cleaning
- Unplug the humidifier and remove the top cover.
- Carefully remove any remaining water from the tank.
- Clean the water tank and base with a soft brush or cloth and a mild detergent. Rinse thoroughly to remove all soap residue.
- For mineral buildup, fill the tank with a mixture of equal parts white vinegar and water. Let it soak for 30 minutes, then scrub gently and rinse.
- Ensure all parts are completely dry before reassembling.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output | Low water level; Mineral buildup; Mist outlet blocked. | Refill water tank; Clean the humidifier as per maintenance instructions; Ensure mist outlet is clear. |
| Unusual noise | Humidifier not on a flat surface; Water tank not properly seated; Foreign object in water tank. | Place on a flat surface; Re-seat the water tank; Check for and remove any foreign objects. |
| Water leakage | Water tank not properly installed; Overfilled tank; Damaged tank. | Ensure tank is correctly seated; Do not overfill; Contact support if tank is damaged. |
| Power indicator not on | Not plugged in; Power outage; Device malfunction. | Check power connection; Verify power supply; Contact customer support. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Xiaomi |
| Model Number | 39953 |
| Color | White |
| Tank Capacity | 4.5 Liters |
| Mist Output | Up to 350 mL/hour |
| Filter Type | Ultraviolet |
| Item Weight | 1.57 Kilograms (3.45 pounds) |
| Product Dimensions | 7.87 x 7.87 x 5.51 inches |
| Room Type | Office, Bedroom |
| Voltage | 220 Volts |
| Wattage | 28 watts |
Warranty and Support
For warranty information and customer support, please refer to the official Xiaomi website or contact your local authorized dealer. Keep your purchase receipt as proof of purchase for any warranty claims.
For further assistance, visit the Xiaomi Store on Amazon.