About CleanWaterAdviser
Independent water filter research since 2024
CleanWaterAdviser exists because most water filter reviews are written by people who have never tested a filter — they copy specs from Amazon listings and call it research.
We do it differently. Every filter on this site is verified against the official NSF International certification database, independent lab reports, and real owner feedback from the last 24 months.
Our methodology
01Check NSF International certification database
02Review independent lab reports from manufacturers
03Analyze real owner reviews — 24-month window only
04Update ratings monthly as new data becomes available
Meet the author
AC
Alex Capitan
Water Quality Researcher
8 years of experience testing residential water filtration systems. Verifies all filter certifications against the NSF International database monthly. No paid partnerships influence editorial decisions.