A Brita filter can remove chloride from water, because chloride is an ion of chlorine, which the filter is designed to absorb, notes Brita. The chlorine molecules in chloride attach to the surface of the filter.
A Brita filter uses activated carbon to filter impurities, such as zinc, cadmium, chlorine, copper and mercury, out of water. Filters made from active carbon are the most effective type of filter for removing chlorine from water, though carbon filters cannot remove minerals and other types of sediment. To keep a Brita filter functioning at its best, change the filter every 40 gallons or every 2 months.