Additional information: P&G Purifier of water is a powdered mixture that comes in small affordable easy-to-use packets. It combines flocculation and disinfection to produce clean drinking water. It contains a chlorine disinfectant (calcium hypochlorite) for killing bacteria and an iron salt coagulant (ferric sulfate) for removing suspended matter, protozoa, and viruses. It also contains a buffer, clay and plymer to provide good coagulation and flocculation. It is safe for long-term use by the entire family, including infants, and is considered an effective technology by the World Health Organization.