Aqua Carpatica, the water with the lowest content of nitrate in Romania, needed to draw attention to the Nitrate problem and educate consumers on the quality of their drinking water. A new product was invented - the Purity test - a little paper strip that gave people the power to know what kind of water they drink. Aqua Carpatica changed the way people looked at their drinking water. It enabled people to feel safe knowing that their only water source was pure.