Xiaomi Smart Air Purifier 4

The Xiaomi Smart Air Purifier 4 is a tower-shaped air purification system designed for medium-sized rooms (28–48 m²). It features a 360-degree air inlet, three-stage HEPA+ carbon filtration, and an OLED touch display for intuitive control. Equipped with advanced sensors and smart connectivity, it delivers powerful purification with whisper-quiet operation.

Key capabilities include a particle CADR rating of 400 m³/h, capturing 99.97% of particles ≥0.3 micrometers (dust, pollen, pet dander, viruses). Real-time monitoring of PM2.5, temperature, and humidity via laser sensors keeps you informed. A negative ion generator adds freshness to the air, while the OLED panel displays air quality status and operating modes (auto, sleep, manual).

• CADR 400 m³/h; purifies a 20 m² room in ~10 minutes
• Captures 99.97% of particles ≥0.3 µm
• Negative ion generator for fresher air
• Real-time PM2.5, temperature, humidity monitoring
• OLED touch panel with air quality indicator
• Voice control: Google Assistant & Alexa compatible
• Mi Home app control for remote management
• Filter replacement reminders; detachable top mesh for easy cleaning
• Quiet operation: 32.1 dB (sleep mode) to ≤64 dB (max)
• Filter lifespan: 6–12 months (replaceable HEPA + activated carbon)