Drinking water is our most important food, but our tap water and bottled 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, PFAS, nitrates, pesticides, industrial chemicals, heavy metals, fluoride, chlorine, lime and much more from the tap water. Ultrapure water: Reverse osmosis technology is even able to remove radioactive components. The impurities do not remain in the filter device as with conventional filters, but are routed to the outside. Further advantages: Easiest maintenance and no more buying bottled water. BestElements reverse osmosis filter devices are manufactured in Germany according to strict quality standards and regulations for your safety. Here is the comparison of our water filters with before/after drinking water test values.