The Xiaomi Smart Pet Care Air Purifier Filter is designed to maintain optimal performance and hygiene in your air purifier. Featuring a dense fiber structure, it ensures efficient filtration and rapid purification. The filter is equipped with dual silver ion protection, achieving an antibacterial rate of over 99%, effectively eliminating harmful bacteria. Additionally, it offers Level 1 anti-mould protection, inhibiting bacterial growth for safer air quality. The filter is reusable and easy to clean, making it a cost-effective and environmentally friendly choice. Regular maintenance is recommended to ensure continued efficiency.