The Nagano Ceramic Trio is developed by the Nagano Research Center (Japan), which specializes in the development and production of functional ceramics for water purification, health and well-being. These 3 ceramic pearls act synergistically to optimize, purify and mineralize running water: Bamboo charcoal-infused ceramics: activated bamboo charcoal increases the filtering power of ceramics tenfold, as it attracts and adsorbs toxic particles, micro-organisms, odors... present in water. Bamboo charcoal ceramics are also charged with negative ions. Far-infrared ceramics: IRL ceramics change the electromagnetic structure of water, making it comparable to the water in the human body. Adsorbent ceramics: their extremely porous constitution naturally attracts toxic particles. Net weight: 20g Packaged in France.