Purified by five special filters, including a reverse osmosis filter, the water is completely free of salts, metals, and germs, which are commonly found in tap water. The purification process eliminates chlorine, odors, heavy metals such as lead, copper, cadmium, and mercury, as well as agricultural chemicals, hormones, antibiotics, pesticides, fungicides, herbicides, drug residues, carcinogenic organic chlorine compounds, radioactive substances, asbestos fibers, tar compounds, nitrites, nitrates, bacteria, viruses, fungal spores, and cysts.

As a result, the water leaves no residue during evaporation and does not form limescale deposits. Additionally, due to its low pH value of 6.0 to 7.0, Ultra Pure Water can even absorb deposits (up to a certain amount), ensuring that the cooling system remains permanently clean.