Can home water filters remove PFAS?

A number of studies have been conducted to determine the efficiency of filtration devices, for point-of-use filters. The results of these studies have shown that point-of-use filters can remove trace organic compounds. Based on these studies, there currently are three general types of filtration systems that can potentially can reduce PFAS levels in water, if properly maintained: granulated activated carbon – either in refrigerator, faucet, or pitcher filters and some filtration systems installed on your water line; reverse osmosis; or granulated activated carbon used with reverse osmosis. However, it is important to ensure the systems are maintained according to the manufacturer and that your water is tested.


Global public health organization NSF International has developed a test method and protocol to verify a water treatment device’s ability to reduce perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) to below the health advisory levels set by the U.S. Environmental Protection Agency (EPA). Consumers can find NSF International-approved devices by visiting: http://info.nsf.org/Certified/DWTU/

Click on “reduction devices” at the bottom of the page for PFOS and PFOA).


Additional community information on this topic is available from other states, including:

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1. Site Background
2. What are PFAS?
3. How can people be exposed to PFAS?
4. Will exposure to PFAS harm my health?
5. Should I get my blood tested for PFAS?
6. Can home water filters remove PFAS?
7. What is the potential risk for PFAS in surface water near the site?
8. Are fish near the site safe to eat?
9. What do we know about plants or animals raised in PFAS-contaminated areas?
10. What are safe gardening practices for PFAS-contaminated areas?