W+ SPA Vitalizer ionized shower head carries nano technology ceramic balls. The unique micro energy provides multi-faceted, multi-level health and well being benefits Far-Infrared Rays improves blood circulation and metabolism Sterilization kills mold and bacteria Water De-clustering , which more active water molecules for better penetration and hydration Negative Ions which proved to relieve stress, alleviate depression and improve the immune system. Activated Charcoal Calcium Sulfite Cartridge removes 99% chlorine.