The enhanced taste, odour, and purity of water are only a few of ultrafiltration's evident advantages. Ultrafiltration improves the overall quality of water by removing pollutants including chlorine, silt, and organic compounds. The outcome is a crisp, pleasant sipping experience that promotes higher water intake Dr.Aqua PURE RO Stage 1 filter Sediment filters remove suspended matter such as sand, silt, loose scale, clay, or organic material from the water. Untreated water passes through a filter medium, which traps suspended matter on the sur- face or within the filter. Dr.Aqua PURE RO Stage 2 filter Carbon filters remove contaminants through adsorption. Adsorption means that contaminants are attracted to the surface of the activated carbon and held to it, much the same way a magnet attracts and holds iron filings. Carbon filters also act as a catalyst to change the chemical composition of some contaminants.