Water filtration units that use granular activated carbon (GAC, also called carbon filters) or reverse osmosis (RO) can be effective in removing PFAS compounds that are commonly tested by commercial laboratories. Both granular activated carbon (GAC) and reverse osmosis (RO) filters can reduce PFAS substances. Both systems provide less water flow than a standard water faucet. Fortunately, filtering PFAS is easy with the right type of filter.
In general, PFOS and PFOA are resistant to most conventional chemical and microbial treatment technologies. The strongest proven technologies for filtering PFAS from drinking water include granular absorption of activated carbon, ion exchange resins and reverse osmosis (1,. Using a separate party to test a filter using a standardized protocol helps ensure that the filter has been tested consistently. You would never believe that the Clearly filtered water jug is a humble water jug filter when it can remove nearly as many contaminants as a reverse osmosis system, including 99.8% of PFA, one of the most impressive PFA removal numbers in existence today.
First of all, if you're looking for a drinking water filter that reduces PFA, the filter should achieve this to an exceptional standard. A new study by scientists at Duke University and North Carolina State University reveals that, while using any filter is better than no filter, many household filters are only partially effective in removing toxic perfluoroalkyl substances, commonly known as PFAS, from drinking water. Finally, installing and maintaining PFA water filters is something that can't be avoided, but some filters are much easier to install and maintain than others. Not all water filters are guaranteed to lower PFA levels, so compare prices and read guides like this one to invest wisely in the best filter to remove PFA.