... amounts of most inorganic chemicals (such as salts, metals, minerals) most microorganisms including cryptosporidium and giardia, and most ... contaminants.Reverse osmosis successfully treats water with dissolved minerals and metals such as aluminum, arsenic, barium, cadmium, chloride ... , salts, sugars, proteins, particles, dyes, heavy metals, chlorine and related by-products, and other contaminants ...