Breathe easier at home with the Xiaomi Smart Air Purifier 4 — a compact but high-performance air purifier that keeps indoor air clean and fresh. Its 400 m³/h PM CADR makes it capable of purifying a large room of up to 48 m²; it can even refresh a typical 20 m² room in around 10 minutes. 

Equipped with a three-stage filtration system, the purifier removes 99.97% of particles as small as 0.3 μm — including dust, pollen, pet hair, smoke and other airborne contaminants — making it ideal for allergy sufferers and pet owners alike. 

Smart features are built in: it supports Wi-Fi connectivity and integrates with the Xiaomi Home / Mi Home app, allowing remote control, scheduling, real-time air quality monitoring, and automatic adjustments. 

With a compact body (250 × 250 × 555 mm) and a net weight of about 5.6 kg, it’s easy to place in bedrooms, living rooms or offices without occupying much space. Despite its power, noise remains modest — ≤ 64 dB(A) — making it suitable for day-to-day use without disturbing your comfort.

Overall, Xiaomi Smart Air Purifier 4 is a reliable, efficient, and smart solution to maintain clean, healthy air — reducing allergens, odors, and harmful particles, and helping you breathe easier every day.