Xiaomi Smart Air Purifier 4 Compact Replacement Filter

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About this product

3-in-1 filter This replacement air purifier filter combines a primary filter, Xiaomi High Efficiency Filter and activated carbon filter in one assembly. The layers work together to capture airborne particles and help keep the compatible purifier performing effectively. Capture Large And Fine Particles The primary layer traps larger particles such as dust, hair and lint, while the high-efficiency layer targets finer particles, including pollen and other airborne allergens. The listed filtration efficiency is 99.97% for 0.3 μm particles under test conditions, not a guarantee that every pollutant in a room will be removed. Activated Carbon Layer An activated carbon layer complements particle filtration. The filter is a replacement component for a compatible purifier, not a standalone air-cleaning appliance. Monitor Filter Life The recommended replacement interval is 6–12 months, depending on daily use and air conditions. Filter performance gradually declines with use; the compatible purifier's Mi Home/Xiaomi Home app can provide usage information and an estimated replacement reminder. Check Compatibility Before Ordering Match the replacement filter to the exact purifier model and the

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