You are Here : Products > Health Care > AiRiZ Active Oxygen Negative ion Sanitary Napkin AiRiZ Active Oxygen Negative ion Sanitary Napkin Balance apparatus for physical biological electricity Balances your physical biological electricity and helps to restore health • Irregularity of biological electric potential can cause hypertension • This apparatus is especially designed for people facing problem of high blood pressure and hypertensive headache. It is based on theories of bio-medical engineering • Biological electric potential is proportional to blood pressure • Use it like a comb for 1-2 times / • for 3-5 min / day