Posted by Richard Farkas on 1/8/2019 to Water Quality and Water Filtration
However, the Water Quality Association has come out with a statement that POU (Point of Use) activated carbon water filtration treatment offers the "best protection" for drinking water and that having activated carbon (the primary component in our counter top and under sink water filters) has "shown promise in removing many of these contaminants." NSF has developed standards for testing, but the EPA has not developed allowable limits (MCLs) for any pharmaceutical drugs.
The carbon block units with the most extensive certifications are the CB Tech CBVOCSB, CBASSB and the Bestfilters Countertop and Under Sink Models.
Further Reading: NSF statement about pharmaceuticals in drinking water: "Home filtering systems provide best protection for drinking water."