... 1) Remove living micro-biological pathogens such as cholera and E.coli, organic microscopic pathogens, pesticides, heavy metals, chlorine ... ) It can be used as first filter component in bucketed water purifier and pipe water purifier devices. It’s especially good ... cleanable and can be reused again and again, no recontamination.(4) It’s safe,natural and Enviroment-friendly, no harm to healthy. Built-in ...