PFAS Reduction
Activated carbon, reverse osmosis, and ion exchange are the main certified approaches for reducing PFAS at home.
Short answer: Look for NSF/ANSI 53, 58, or 401 certification specifically listing the PFAS compounds you're concerned about, follow manufacturer maintenance schedules closely, and confirm your public-water or private-well PFAS levels before choosing treatment. See PFAS in New Jersey for context on standards.
Main treatment approaches
- Activated carbon: effective for many PFAS compounds when properly sized and maintained; requires monitoring for breakthrough as the media saturates.
- Reverse osmosis: effective for a broad range of PFAS when certified; see Reverse Osmosis.
- Ion exchange: another certified approach, particularly for specific PFAS compounds.
Important limitations
- Certification is specific to tested PFAS compounds — "removes PFAS" is not a universal claim.
- Activated carbon media can become saturated ("breakthrough") and needs replacement before it stops working, not after.
- Confirmatory testing after installation is a good practice to verify performance.
Step-by-step
- Confirm your current PFAS levels through your CCR (public water) or certified lab testing (private well).
- Choose a system certified for the specific PFAS compounds detected.
- Install and maintain per manufacturer schedule, including media replacement before rated capacity is reached.
- Consider periodic confirmatory testing.
Common mistakes
- Buying a system with a general "reduces contaminants" claim instead of PFAS-specific certification
- Running activated carbon media past its breakthrough point
- Skipping confirmatory testing after installation
Official sources
- NSF/ANSI 53, 58, and 401 certification standards
- NJDEP PFAS program and Drinking Water Quality Institute
- U.S. EPA PFAS treatment guidance
Related
Does any filter remove 100% of PFAS?
No treatment claim should promise removal of every PFAS compound. Look for certification specific to the compounds detected in your water, and maintain the system on schedule.
This page provides general educational information and does not endorse a specific manufacturer or product claim.
Last reviewed: 2026-07-11. Report a correction.