PuriPro Far Infrared Filter based on natural mineral stone, combines with water to generate indispensable minerals for the body, such as Calcium, Iron, Silicon, Magnesium, at the same time, revitalising the water, emitting FIR (far-intrared rays) to produce `living water'. Far-infrared rays are part of the sunlight spectrum which is invisible to the naked eye. It also known as Biogenetic rays (between 6 to 14 microns). Biogenetics rays have been proven by scientists to promote the growth and health of living cells especially in plants, animals and human beings. FIR are able to activate, revitalize, reactivate, develop and strengthen various organs in our bodies when it is absorbed.