3 Pcs Replacement Filter Compatible with Alen Bh400 & 45i Air Purifier with 6 Pcs Activated Carbon Pre Filter Sheets, 3-in-1 H13 HEPA Filter B4-Pure/Fl40, Replace Model B4-Fresh / FL40-Silver-Carbon

Value Pack: You will receive 3 replacement HEPA filters and 6 activated carbon pre-filter sheets, providing a convenient supply for regular replacement needs while helping maintain consistent air purifier performance | Perfect Fit: Compatible with Alen Bh400 & 45i air purifier models. Part number B4-Fresh / FL40-Silver-Carbon for easy replacement and stable installation | 3-in-1 Filtration: The dual-layer filtration structure helps capture large particles and supports a fresher indoor environment. Built with a foam sealing frame to help reduce air leakage around the edges, allowing air to pass through the filter material more effectively for improved filtration performance | Reliable Materials: Made with high-density pleated HEPA media and thick activated carbon fabric to support balanced airflow and long-lasting daily use in bedrooms, offices, kitchens, and pet areas | Disclaimer: This is an aftermarket replacement part produced by StreytoTek. We have no affiliation with, and are not endorsed by Alen. All brand names and logos are registered trademarks of their respective owners