Xiaomi Smart Air Purifier 4 Compact Filter

The Xiaomi Smart Air Purifier 4 Compact Filter is a genuine replacement filter using a 3-in-1, three-layer high-efficiency filtration system. It captures dust, pollen, PM2.5 particles, pet hair, pet dander, and common allergens from indoor air. The filter matches the original equipment specifications for the compatible Xiaomi unit. Its multi-stage construction handles both coarse and fine particulates within a single cartridge. Compatibility is limited to the Xiaomi Smart Air Purifier 4 Compact.

Xiaomi recommends replacing the filter after approximately 12 months, depending on usage and indoor air conditions. The white filter is removable and designed for straightforward user replacement. Regular maintenance helps the compatible air purifier sustain effective performance over extended periods of daily operation. Replacement frequency may vary with indoor air quality, pollution levels, and daily operating hours. Consistent filtration is maintained throughout the recommended service life when the filter is replaced at the suggested intervals.

• 99.97% filtration efficiency — captures nearly all rated airborne particles
• 0.3 μm minimum particle capture size — targets microscopic contaminants
• HEPA filtration system — provides particle capture within the integrated design
• Activated carbon filter with anti-odor function — reduces unpleasant odours and certain airborne gases
• Pre-filter included — initial filtration layer before the primary stages