Drinking water is our most important food, but our tap water in Germany and mineral water are not always free from contamination, as press reports show more and more often. Through thorough filtration at the molecular level, BestElements reverse osmosis filter devices remove impurities such as germs, bacteria and viruses, drug and drug residues, antibiotics, hormones, nitrates, pesticides, industrial chemicals, heavy metals, fluoride, chlorine, lime and much more from the tap water. Ultrapure water through diffusion process: Reverse osmosis technology is even able to remove radioactive components. The impurities do not remain in the filter device but are led to the outside as waste water.