The Xiaomi Smart Air Purifier 4 combines advanced filtration technology with smart convenience to deliver cleaner, healthier air every day. Its powerful 400m²/h CADR and 360° air intake refresh a 20m² room in just 10 minutes, while the three-stage filtration system—featuring Xiaomi’s high-efficiency filter—removes 99.97% of particles as small as 0.3 µm, including allergens, dust, pollen, and pet dander. TUV Rheinland Allergy Care certified, it’s ideal for sensitive households. With whisper-quiet operation, an intuitive OLED display, and full smart-home integration, it offers powerful purification in a sleek, compact form.