Xiaomi
Xiaomi Smart Air Purifier 4 Pro
- Works with HA
- Local control
- Wi-Fi
Prices verified October 2026
Our verdict
A larger Xiaomi purifier with a proper laser dust sensor, an OLED display and a high clean-air rate for its size. It is one of the few smart purifiers where HA has a local integration: Xiaomi Miio can talk to it on the LAN using the device token, though that token has to be extracted from the Mi Home account. Cheap to run and well supported, but the setup is techy and filters are an ongoing cost.
What can Home Assistant control on the Xiaomi Smart Air Purifier 4 Pro?
| Control | Type | What it does |
|---|---|---|
| Fan / mode | Fan entity | on/off, preset mode, fan level |
| PM2.5 | Sensor | laser dust sensor reading |
Xiaomi Miio exposes on/off, mode, fan level, favourite level and the PM2.5 sensor. Getting the token is the awkward part; once set, local control works without the Xiaomi cloud. Check the newer Xiaomi Home integration if Miio fails to find the 4 Pro.
Specs
| app | Xiaomi Home |
|---|---|
| sensor | Laser dust (PM2.5) sensor with display |
| connectivity | 2.4GHz Wi-Fi |
How does the Xiaomi Smart Air Purifier 4 Pro compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| Xiaomi Smart Air Purifier 4 Pro (this product) | — | Wi-Fi | Yes | Works with HA |
| IKEA STARKVIND Air Purifier (Smart) | £129 | Zigbee | Yes | Zigbee2MQTT / ZHA |
| Levoit Core 200S | £79.99 | Wi-Fi | Cloud | Works with HA |
| Levoit Core 300S | — | Wi-Fi | Cloud | Works with HA |
Frequently asked questions
- Does the Xiaomi Smart Air Purifier 4 Pro work with Home Assistant locally?
- Yes. The Xiaomi Smart Air Purifier 4 Pro is controlled locally in Home Assistant through a certified "Works with Home Assistant" integration (Xiaomi Miio), so it keeps working if your internet connection or the Xiaomi cloud goes down. Control and state updates stay on your own network.
- Which protocol does the Xiaomi Smart Air Purifier 4 Pro use, and do I need a hub?
- The Xiaomi Smart Air Purifier 4 Pro uses Wi-Fi. To pair it with Home Assistant you need no hub — it joins your Wi-Fi network directly. Xiaomi's own hub is not required when you integrate through a certified "Works with Home Assistant" integration (Xiaomi Miio).
Xiaomi
Xiaomi Smart Air Purifier 4 Pro
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