The process where negative ions are produced from the water droplets that form as water falls from a waterfall and breaks up when it hits the rocks is known as the Lenard Effect, and the negative ions from this kind of waterfall water has the effect of cleaning the air around it.
The Skin Cares Shower Head employs scientific principles based on the Lenard Effect to produce a large volume of negative ions, offering the sensation of showering in the valley of a forest.