Product details:

The Berkey Shower Filter works on a similar principle to a catalytic converter in an automobile. Inside the shower filter, free chlorine is converted into a harmless chloride. The scientific name for this chemical reaction taking place inside the Berkey shower filter is known as Reduction-Oxidation, commonly referred to as Redox. Redox reactions can be chemically complex. Simply stated, during a Redox reaction electrons are transferred between molecules, creating new elements. For instance, when free chlorine comes in contact with the Berkey filtration media, it is changed into a benign, water-soluble chloride. This reaction changes free-chlorine to a larger chloride element, too large to evaporate or be absorbed by the skin. Hospitals, restaurants, municipal water treatment facilities, and homes rely on this same process media to safely reduce or remove free chlorine, hydrogen sulfide and bacteria from their water.