Xiaomi Smart Air Purifier 4 Pro delivers a particle CADR of up to 500m³/h, releasing 8,330L of clean air per minute across an effective coverage area of 35–60m² — enough to purify a 40m² living room in around 15 minutes.

A three-in-one filter combining a primary filter, Xiaomi's High Efficiency Filter, and 650,000mg of high-quality activated carbon captures 99.97% of particles down to 0.3μm, certified by TÜV Rheinland Allergy Care for strict allergen filtration. It's built with pet owners and allergy sufferers in mind, filtering pet hair, dander, and pollen while reducing airborne H1N1 virus, backed by a PM2.5/PM10 dual-effect sensor that also tracks large particles like pollen.

The TÜV Rheinland Allergy Care certification is worth paying attention to if allergies are the actual reason you're shopping for a purifier, since it signals independently verified allergen filtration rather than just a manufacturer's suction claim. The 15-minute purification time for a 40m² room also makes it practical for larger open-plan living spaces, not just bedrooms.

• Particle CADR: Up to 500m³/h (8,330L clean air/min)
• Coverage Area: 35–60m²
• Filtration: Three-in-one filter, 99.97% at 0.3μm
• Activated Carbon: 650,000mg
• Certification: TÜV Rheinland Allergy Care
• Sensors: PM2.5/PM10 dual-effect, large-particle monitoring

• 500m³/h CADR purifies a 40m² room in about 15 minutes
• Three-in-one filter combines particle capture with odor elimination
• TÜV Rheinland certification confirms strict allergen filtration
• Reduces H1N1 virus and common bacteria in the air
• Pet hair and dander filtration suits households with animals