​​Water purifiers function similarly to water filters, as both remove impurities. However, water purifiers go a step further by killing biological contaminants and removing minerals from water. This is done via two methods of purification:

• Reverse osmosis (RO)

• Distillation

• UV Treatment

Reverse osmosis works much like a filter, but instead of using contaminant-grabbing media, it forces all water particles through a very small semi-permeable membrane (think of the whites of an egg). This semi-permeable membrane screens out all particles that are too big to follow the water's pathway.