A distinction must be made between plastics that dissolve in water and pose a health hazard and those in the form of tiny solid elements.

In the first group, and among the health-hazardous plastics that can dissolve in water, the most common are bisphenol A (BPA) and 1,1-dichloroethane (11-DCA). Good news, Black Berkey® filters allow for the removal of both of these plastics.

In addition, thanks to the filtration power that can operate in the 24 to 26 nanometer range, micro-plastics in the form of solid residues are also removed. In fact, these measure approximately 2.5 microns (2500 nanometers), much larger than the 24 nanometers of the filter.