Product Features:

- This filter is only compatible with the Xiaomi Smart Air Purifier 4 Pro.

- Consists of three layers: the primary filter layer, a high-quality Xiaomi filter, and a filter made of activated carbon that purifies and filters the air to a high degree.

- The primary filter blocks larger particles such as dust and hair.

- Suitable for long-term use as it's resistant to acids and oils.

- The filter's efficiency decreases with prolonged use; therefore, it's recommended to replace the filter every 6 to 12 months to ensure optimal results.

- Through the Mi Home / Xiaomi Home app, you can monitor the filter's usage.

- The app will notify you when it's time to replace the filter.

- The replacement process is very easy. Just twist and pull it out, and you can replace it immediately.