On July 22, Xiaomi put the Mijia Purifying Humidifier 3 Pro on crowdfunding in China with a headline 2,000mL/h humidification rate and built-in air purification, turning a room-humidity appliance into a broader indoor air treatment device.
The new Mijia unit is designed for larger rooms and pairs rapid moisture output with filtration, sterilization, app controls and voice support, according to Notebookcheck. The timing matters because Xiaomi is not pitching this as a basic humidifier. It is positioning the device as a connected home appliance that can manage humidity, particulates, allergens and formaldehyde from one unit.
July 22: Xiaomi unveils Mijia Purifying Humidifier 3 Pro with 2,000mL/h output
The core spec is blunt: 2,000mL of moisture per hour. Xiaomi says that is enough to raise humidity in a “standard bedroom” in about seven minutes, or a “living room” in roughly 19 minutes.
Xiaomi says the Mijia Purifying Humidifier 3 Pro can raise humidity in a “standard bedroom” in about seven minutes or a “living room” in roughly 19 minutes.
There is a caveat. Xiaomi does not provide concrete room dimensions for either claim, so the seven-minute and 19-minute figures are useful as performance signals, not as directly comparable room-size benchmarks.
The appliance carries an 8-liter water tank, which Xiaomi says can run for up to 16 hours in sleep mode. That tank size matters because high-output humidifiers can burn through water quickly. A larger tank reduces refill frequency, especially if the device is being used overnight or in a dry room where it needs to keep pushing moisture.
The Mijia Purifying Humidifier 3 Pro is currently crowdfunding on Xiaomi Youpin in China at 1,699 yuan, or about $251. There is no confirmed global launch.
| Spec or feature | Xiaomi’s stated figure or capability | Practical read |
|---|---|---|
| Humidification output | 2,000mL/h | Built for fast humidity adjustment |
| Water tank | 8 liters | Fewer refills than smaller humidifiers |
| Sleep-mode runtime | Up to 16 hours | Overnight operation is the obvious use case |
| China crowdfunding price | 1,699 yuan / approx. $251 | Availability is still China-first |
| Global launch | No indication yet | Import or wider rollout remains uncertain |
MLXIO analysis: Xiaomi is using raw humidification speed as the hook, but the product’s broader pitch is convenience. The device folds water delivery, filtration, sensors and app control into one appliance, which is more compelling than output alone if it reduces the number of devices a household needs to run.
Sterilization and six-layer filtration push the Mijia 3 Pro beyond a standard humidifier
The Mijia Purifying Humidifier 3 Pro is a 2-in-1 device. Its humidification and purification functions can operate independently, so users can run it as an air purifier even when the room does not need more moisture.
Air purification is handled by a six-layer filter. Xiaomi lists support for removing dust, PM1, PM2.5, allergens and formaldehyde. Related specifications from the supplied material include a particulate matter CADR of 422m³/h and a formaldehyde CADR of 247m³/h.
The hygiene system is just as central to the product. Xiaomi has added a one-way water circulation system designed to stop used water from flowing back into the tank. The stated aim is to reduce bacterial growth and water discoloration.
Other maintenance and sterilization features include:
- Electrolyzed water sterilization: Built-in sterilization for cleaner water handling.
- Washable antibacterial filter: A reusable hygiene layer for routine upkeep.
- Self-cleaning mode: A maintenance function aimed at reducing manual cleaning burden.
- Independent operating modes: Humidification and purification do not have to run together.
MLXIO analysis: The one-way circulation detail is more important than it sounds. Humidifiers often live or die by maintenance friction. If the tank, filter and water path become tedious to clean, users may stop using the device or run it in poor condition. Xiaomi’s design choices directly target that weak point.
The purifier side also changes how the device can be used across seasons. A pure humidifier is most useful when the air is dry. A hybrid unit can still serve a purpose when humidity is already adequate, because purification can run on its own.
Notebookcheck names the Airthereal 2-in-1 Air Purifier & Humidifier Combo as a comparable alternative. The supplied material does not provide a spec-by-spec comparison, so the useful takeaway is limited: Xiaomi is entering a product category where combined air treatment devices already exist, but it is differentiating this model through high humidification output, connected controls and its Mijia branding.
China crowdfunding price sets the next availability question
The device uses a dome-shaped LCD display that shows live humidity, temperature, dust levels and air quality. The supplied details also describe adaptive brightness, dust concentration readings and PM1 and PM2.5 level monitoring.
Control runs through the Mijia app and XiaoAI voice assistant. Users can adjust settings, set target humidity levels and monitor filter status. That matters because humidity control is more useful when it can be automated around daily patterns rather than adjusted manually every time the room changes.
The design also includes top-fill water refilling, a removable tank with a carrying handle, built-in 360-degree caster wheels, and a DC brushless inverter motor. Xiaomi claims sleep-mode noise of 28.1dB(A).
For readers tracking Xiaomi’s wider connected hardware catalog, MLXIO has separately covered the company’s appliance push in €30 Gap Turns Xiaomi Washer-Dryer Into Europe’s Smart Bet and its outdoor smart home angle in Xiaomi Solar Security Camera Ditches Wi-Fi for 4G. Those stories do not confirm anything about the Mijia Purifying Humidifier 3 Pro’s international release, but they show why Xiaomi’s home devices keep drawing attention beyond phones.
The next decision point is availability. Xiaomi has confirmed China crowdfunding and pricing through Youpin, but not a wider release. If the Mijia Purifying Humidifier 3 Pro leaves China, the questions will be local pricing, filter availability, app and voice-assistant support, and whether Xiaomi keeps the same specification sheet outside its initial market.
Key Takeaways
- Xiaomi is combining humidification and air purification in one connected home appliance.
- The 2,000mL/h output and 8-liter tank suggest the device is aimed at larger rooms and overnight use.
- The 1,699 yuan crowdfunding price positions it as a premium smart-home air treatment product, though global availability is unconfirmed.
