Authentic Blueair Replacement Pre-filter in Archipelago Sand for Blue Pure 311 Auto Air Purifier

High-quality replacement pre-filter for Blue Pure 311 Auto air purifier, featuring a hidden compartment and available in multiple colors inspired by Scandinavian landscapes. Customize with our washable, reusable pre-filter in Archipelago Sand. Easily vacuum the exterior or machine wash in cold water for a deeper clean. Available in multiple colors: Arctic Trail, Winter Reed, Archipelago Sand, Aurora Light, and Night Waves.