Medium-efficiency filters are designed according to ISO 16890 standards for ePM10 and ePM2.5 filtration, with common grades ranging from F5 to F9. They are widely used in air purifiers, hospitals, automotive manufacturing, and pharmaceutical applications to capture fine dust and airborne particles while protecting downstream HEPA filters and ULPA filters. Available in V-bank, bag, panel, cartridge, and separator types, they provide reliable medium filtration for a wide range of air handling systems.