Brita is a German company that specializes in water filtration proucts. The company is the world's market leader in portable household water filtration. Brita products include water jugs, kettles and tap attachments, all of which use silver-impregnated activated carbon and ion-exchange resin as their primary filtering mechanism. The activated carbon used in Brita filters is produced from coconut shells. The company manufactures its pitchers from styrene methyl methacrylate copolymer.