... W.:10g/pcs5).3ATM waterproof6).CE, ROHS2.Child Silicon Ion Watch Health benefits of Negative Ions 1) In general. Positive ions generated in ... insomnia, constipation, loss of appetite and so on, the relative anion air more calm and soothe the nerves with a biological ... the human body by pollution, stimulate and injury. 3) Anion can increase vital capacity, reduce the frequency of respiration, smooth ...