The Bioceramic balls are made from various kinds of natural minerals. Also usually known as Mineral balls. This technology was found in Korea. It is baked and cooled under high temperatures several times. There are different Bioceramics with different functions and usage.
Functions of Bioceramics used in the diffusers/filters range from adding minerals like Calcium, Sodium, Potassium, Increasing pH, Negative ORP (Antioxidant), infusing dissolved Hydrogen & enhancing the taste.