Care: Please do not allow your One Breath Meditation Necklace to come in contact with water (except for cleaning), chemicals, or oils. Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide, which causes the jewelry to deteriorate and corrode over time. It is also recommended that you occasionally, gently rinse your necklace with warm soapy water and allow to air dry completely to prevent buildup of bacteria.