Xiaomi Air Humidifier: Complete instructions for use for beginners and experienced users

Xiaomi’s humidifiers have become an integral part of smart homes thanks to the combination of affordable price, functionality and integration with the Mi Home ecosystem. However, even such a simple device requires the right approach to operation – from the first setup to regular maintenance. In this article, we will examine not only the basic steps (how to turn on, refill with water or connect to Wi-Fi), but also nuances that the manufacturer often misses in official instructions.

You will learn how to avoid common mistakes (such as using hard water or installing filters incorrectly) that shorten the life of the device, and how to make the most of smart control features. 2/3, Xiaomi Mi Air Humidifier Pro and other popular options – their settings can be significantly different. If you just unpacked the box or have already encountered problems in work, this guide will help you understand all the details.

Preparing Xiaomi Moisturizer for First Use

Before you start, you need to assemble and refuel the device properly. Start by unpacking all the components: the humidifier, the power adapter, the filter (if the model provides), the measuring cup and the instruction. Do not connect the device to the network until you have completed all the preparatory steps, which can lead to a malfunction of the electronics.

Pay special attention to the filter (if your model has one) Smartmi Air Humidifier 3 and Pro devices use an antibacterial filter, which must be washed under running water for 1-2 minutes before first use, which will remove the dust and activate the antimicrobial coating. Ignoring this step can lead to unpleasant odor in the first days of operation.

  • πŸ“¦ Check the complete set: body, adapter, filter (if available), measuring cup.
  • πŸ’§ Use only distilled or filtered water – hard water shortens the life of the ultrasonic membrane.
  • πŸ”Œ Do not connect to the network until fully assembled and refueled with water.
  • 🧼 Wash the tank with warm water with a mild detergent (without abrasives!).

Once assembled, install the humidifier on a flat surface at least 30 cm from walls and furniture, which will ensure that the vapor is evenly distributed and prevent condensation. If your model has a hygrostat (humidity sensor), place the device away from heat sources or drafts - they distort the readings.

πŸ“Š What kind of Xiaomi humidifier model you use?
Smartmi Air Humidifier 2
Smartmi Air Humidifier 3
Xiaomi Mi Air Humidifier Pro
Another model
I haven't bought it yet.

How to fill up water: rules and mistakes

Water quality directly affects the humidifier and indoor air quality. The manufacturer recommends distilled or demineralized water, but boiled (chilled) or filtered water is also suitable. Hard tap water contains calcium and magnesium salts that settle on the ultrasonic membrane and reduce its resource, at worst, this leads to breakage after 3-6 months of active use.

The process of filling is simple, but there are nuances:

  1. Disconnect the device from the network and remove the top cover (in most models it is snapped or unscrewed).
  2. Pour out the water residues from the tank, if any, and rinse it.
  3. Fill the tank with water to the maximum level (usually 4-5 liters, depending on the model).
  4. Place the lid in place and make sure it is tightly closed (the click should be heard).

⚠️ Note: If your model has a separate compartment for aromatic capsules (for example, in Smartmi Air Humidifier 3), do not add essential oils directly to the water.This destroys the membrane and voids the warranty. Use only original capsules from Xiaomi.

Type of waterIs it suitable for a moisturiser?Effects of use
Distilledβœ… Yes.Best option, no scale.
Filtered (household filter)βœ… Yes.It may leave a slight smear.
Boiled (chilled)⚠️ Conditionally.Less salts, but a slight raid is possible
From the tap (untreated)❌ No.Rapid scale formation, membrane breakdown

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To reduce scale, add 1-2 tablespoons of table cider vinegar (by 4 liters) to the water and turn the device on for 10-15 minutes in maximum power mode. Then rinse the tank. Repeat the procedure once every 2 weeks.

Connection to the Mi Home application: step-by-step instructions

Xiaomi’s smart humidifiers support management through the Mi Home app (or Xiaomi Home in newer versions), which allows you to remotely turn your device on/off, adjust your schedule, monitor humidity levels, and receive notifications when you need to refuel, but connecting can be difficult, especially if you’re using the device for the first time.

Follow this algorithm:

  1. Install the Mi Home app from Google Play or the App Store.
  2. Create a Xiaomi account or sign in to an existing one.
  3. Connect the humidifier to the network and make sure it is in standby mode (indicators are on).
  4. In the app, click Add Device (+) β†’ Air humidifier β†’ Choose a model.
  5. Follow the instructions on the screen: the application will prompt you to connect to the device’s temporary Wi-Fi network (the name will begin on the device’s Wi-Fi network). Xiaomi_XXXX).
  6. Once connected, return to the main Wi-Fi network and wait for the setup to be completed.

If the humidifier is not connected:

  • πŸ”„ Restart your router – sometimes the problem is blocking new devices.
  • πŸ“Ά Check Wi-Fi frequency – Xiaomi humidifiers only work at 2.4 GHz (do not support 5 GHz).
  • πŸ”‹ Reset the device – press the power button for 5-10 seconds before the beep.

The humidifier is plugged in and is in standby mode.|

Phone connected to 2.4 GHz Wi-Fi|

In the Mi Home app, the correct region (China or Russia) is selected)|

Bluetooth enabled on the phone (needed for some models)-->

Modes of operation and settings through the application

Xiaomi humidifiers offer several modes of operation that can be configured both from the control panel on the case and through the application.

  • 🌬️ Automotive mode: the device maintains a predetermined humidity level (40–60.
  • πŸ’§ Manual mode: select the intensity of evaporation (usually 3 levels: low, medium, high).
  • πŸ•’ Night mode: reduces noise to 30 dB and turns off backlights (relevant for models with LEDs).
  • πŸ‘Ά Child Mode: maintains humidity at 50-60% and blocks the buttons on the body (in Smartmi Air Humidifier 3).

In the Mi Home application, additional settings are available:

  • Schedule: You can program the on/off time (for example, from 22:00 to 7:00).
  • Notifications: Alerts about low water levels or need to be cleaned.
  • Castomic scenarios: integration with other Xiaomi devices (for example, the humidifier is turned on when the air conditioner is running).

If your model supports voice control (via Alice, Google Assistant or Siri), activate this feature in the app settings.

  1. Open the device card in Mi Home.
  2. Go to Settings. β†’ Voice assistant.
  3. Select a platform and follow the instructions for linking accounts.
How to reset the settings of the humidifier to the factory?
To perform a full reset, disconnect the device from the network, then press the power button for 10-15 seconds before the beep (in some models, the signal is accompanied by a flashing indicator), after which the humidifier will return to the factory settings, and it will have to reconnect to Wi-Fi.

Cleaning and maintenance: how to extend the service life

Regular cleaning is a key factor in the durability of the humidifier, and the manufacturer recommends it at least once a week, but with heavy use (for example, during the heating season), it is better to reduce the interval to 3-4 days, Scale and bacteria not only worsen the quality of steam, but can also cause breakage.

Step-by-step instructions for cleaning:

  1. Disconnect the device from the network and drain the remaining water.
  2. Remove the tank and rinse it with warm water with a soft sponge. Don't use abrasives, they scratch the plastic.
  3. To remove scale, pour a solution of vinegar (1:1 with water) into the tank and leave for 30 to 60 minutes.
  4. Wipe the ultrasonic membrane (usually located at the bottom) with a cotton swab soaked in vinegar or citric acid.
  5. If the model has a filter, wash it under running water or replace it (filter life is 2-3 months).

You can use specialized disinfectants (e.g. Xiaomi Air Purifier Cleaner) or chlorhexidine (0.05% solution), put it in a tank for 20-30 minutes, then rinse. Never use bleach or aggressive chemicals, this will damage the plastic and membrane.

⚠️ Note: If the humidifier starts to smell bad after cleaning, it is likely that the bacteria have penetrated into hard-to-reach places (for example, into the steam supply channels). In this case, repeat disinfection with vinegar or use tablets to clean humidifiers (sold in hardware stores).

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Using distilled water and cleaning weekly increases the life of an ultrasonic membrane by 2-3 times, the most expensive part in a humidifier, which can cost up to 70% of the price of a new device.

Typical malfunctions and ways to eliminate them

Even when properly operated, Xiaomi humidifiers can fail, and consider the most common problems and solutions:

Problem.Possible causeDecision
Not included.Problems with power or control unitCheck the socket, cable and try resetting (clamb the power button for 10 seconds.)
Not spraying steam.The membrane clogged or no waterRinse the membrane, check the water level and level sensor
Weak steam at full tankScaling on the membrane or pump malfunctionClean the membrane with vinegar. If it doesn't work, contact the service.
The device is permanently shutting down.The sensor of overheating or protection was activatedLet it cool for 30 minutes, check the vents
Not connected to Wi-Fi.Incorrect router settingsSwitch the router to 2.4 GHz, turn off MAC-filtering

If the humidifier makes unusual sounds (squeaking, humming), the problem is probably in the pump or fan.

  1. Turn off the device and drain the water.
  2. Check if a foreign object has hit the vents.
  3. If the sound has not disappeared, contact the service center (self-repair can aggravate the breakdown).

The humidity sensor is another problem, and it's a bad reading. If the humidifier shuts down when it's low humidity, or if it doesn't stop working, try:

  • Move the device to another location (away from windows, batteries, kitchens).
  • Wipe the sensor (usually located on the front panel) with a dry wipe.
  • Update the firmware through the Mi Home app.

Advice on effective use

To make the humidifier work as efficiently as possible, follow these recommendations:

  • πŸ“ Placement: Set the device to a height of 0.5-1 meters from the floor, this will ensure that the vapor is evenly distributed throughout the room.
  • 🌑️ Air temperature: optimal range - 18-25Β°C. At lower temperatures, the vapor can condense onto furniture.
  • πŸšͺ Ventilation: in well-ventilated areas, the humidifier works more efficiently. However, avoid drafts near the device.
  • πŸ’¦ Humidity levels: Do not keep humidity above 60% – this can cause mold to appear.

If you use a humidifier in a nursery, select a model with a "Children Mode" function (for example, Smartmi Air Humidifier 3). It automatically maintains a safe humidity level and blocks buttons on the case. UV-lamp (for example, Xiaomi Mi Air Humidifier Pro) – it disinfects water and prevents the reproduction of bacteria.

To extend the life of the device:

  • Use softening cartridges (if provided by the model).
  • Keep the humidifier in a dry place if you do not use it for a long time.
  • Periodically update the firmware through Mi Home – this fixes errors and adds new features.

πŸ’‘

If your model doesn’t have a built-in hygrostat, buy a separate humidity sensor (such as the Xiaomi Temperature and Humidity Sensor 2). Connect it to the Mi Home and set up automation: the humidifier will only turn on when the humidity drops below a predetermined level.

FAQ: Answers to Frequent Questions

Can I use essential oils in a Xiaomi moisturiser?
No, most Xiaomi models are not designed to work with essential oils. Oils break the ultrasonic membrane and can lead to breakage. Except for models with a special compartment for aromatic capsules (for example, Smartmi Air Humidifier 3), but they can only use original capsules from Xiaomi.
How often should I change the filter in the humidifier?
The life of the filter depends on the model and the intensity of use, on average, it is recommended to change it every 2-3 months, the Mi Home app has a filter resource counter that reminds you to replace the filter, flushing the filter under running water can extend its life, but not more than 1-2 weeks.
Why does Xiaomi’s humidifier make gurgling sounds?
Gurgling is normal for pump operation and tank movement. However, if the sounds are louder than usual, check: Water level (lower pumps work harder), membrane purity (scalp can change sound), assembly correctness (check if the tank lid is tightly closed). If the gurgling is accompanied by weak vapor, the membrane is likely crammed with scale and requires cleaning.
Can I leave the humidifier on overnight?
Yes, but with reservations: Use night mode (reduces noise and turns off backlights). Make sure there is enough water in the tank (some models automatically turn off at low levels). Don't direct the steam flow directly to the bed or furniture. Models with automatic rollover shutdown (e.g. Smartmi Air Humidifier 2) are safe for night use.
How to make a mistake "E1" or "E2" display?
Error codes in Xiaomi moisturizers mean: E1 β€” No water in the tank or a faulty level sensor. E2 β€” To reset the error: Turn the device off the mains. Pour the water and flush the tank. Clean the membrane with vinegar or citric acid. Plug the humidifier back in and turn it on. If the error is repeated, contact the service center - you may need to replace the membrane or sensor.