About DrinkingWaterFilter.com
We help you find out what’s in your tap water and which filters are certified to remove it.
Why we exist
Most water filter advice online is written to sell you something. Brands say their products “reduce contaminants” without saying which ones, by how much, or whether anyone independent checked.
DrinkingWaterFilter.com closes that gap. We turn certification listings, EPA rules, and makers’ published data into plain-English advice, so you can buy once and buy right.
What we promise
Certified beats claimed
We rank on what a filter is certified to remove, and we name who certified it: NSF International, IAPMO R&T, or WQA.
Sources you can check
Every certification and performance claim cites the listing, rule, or data sheet behind it.
We say when it falls short
If a filter has limits, we say so, however popular the brand.
Nobody pays for placement
No brand can buy a rank, a score, or a review.
The full method is on our How We Rank page.
How we research
- We check every certification claim against the certifier’s own listing, for the exact model.
- We read makers’ performance data sheets and instructions, and label anything that’s only the maker’s claim.
- We use government, university, and certifier sources for health and safety facts.
- When a claim can’t be verified, we say so or leave it out.
We report what independent certifiers and published data show, and we link the source so you can check it too.
Who’s behind it
Our reviews and guides are written under the byline of Marcus Chen, our lead researcher, who checks certification claims against NSF International, IAPMO R&T, and WQA listings, reviews makers’ published data, and works out the running cost of each filter.
How we make money
The site is reader-supported. When you buy through some of our links, we may earn a commission at no extra cost to you. That keeps the site free to read and free of sponsored content. Commissions never change a score or a ranking. See our affiliate disclosure.
Get in touch
Spotted an error, want a product reviewed, or have a partnership question? Email [email protected] or use our contact page.