Does PUR remove PFAS?

Last reviewed July 2026.

Yes — PUR holds a certified PFAS claim. Not marketing copy: an accredited certifier lists it, and the source and the exact claim are below.

Model by model

PPF951K1: IAPMO R&T certificate W-29904 lists a total PFAS claim for the PPF951K under NSF/ANSI 53. PUR's performance data sheet (pur.com/pds: https://www.pur.com/wp-content/uploads/PUR_PDS_Pitcher_Filters_PPF951K.pdf, read 2026-10-02) gives the test mixture as PFOA, PFOS, PFHxS, PFNA, PFHpA, PFBS and PFDA. The claim is not in NSF's listing: NSF's NSF/ANSI 401 claim set for the PPF951K covers pharmaceuticals, BPA, nonylphenol and microplastics, with no PFOA or PFOS. Source: IAPMO R&T certificate W-29904, Kaz USA (PUR), read 2026-10-02.

PPF951K1: NSF lists the PPF951K under NSF/ANSI 42, 53 and 401 at 40 gallons (Helen of Troy listing, read 2026-10-02), but NSF's 53 claim set for it does not include lead and its 401 set has no PFOA or PFOS. The lead and total PFAS claims are IAPMO R&T's: certificate W-29904 (Kaz USA, NSF/ANSI 53-2024, read 2026-10-02) lists both for the PPF951K.

What the certified claim costs to run

Certification is per model, and so is the running cost. The cheapest PUR model carrying the claim is the PLUS Pitcher & Dispenser Replacement Filter (PPF951K1) at about $14.99 per filter for a certified 40 gallons — $0.375 per certified gallon.

That capacity is what the certifier tested to, not a marketing estimate. For one person drinking about half a gallon a day it is roughly 3 months per filter; for a family of four, closer to about 3 weeks. Run past the rated capacity and the claim no longer applies — the media is exhausted even though the filter still passes water.

How to check this yourself

Nothing here needs to be taken on trust. PUR's certifications are held by IAPMO R&T, NSF, and each keeps a public database you can search by brand or model number. Look up the model printed on the filter — not the box, not the retail listing — and read which standards the entry lists. A model certified to 42 only will say exactly that.

Direct listings: PPF951K1

If a figure on this page disagrees with the certifier's listing, the listing wins. Tell us and we will correct it.

What "removes PFAS" actually covers

The certified claim is PFOA/PFOS reduction — the two legacy compounds the standards test for — or, on newer NSF/ANSI 53 listings, a total PFAS claim tested on a set mixture of seven compounds that includes PFOA and PFOS. Neither is "all PFAS", a family of thousands of chemicals. A certified filter is still the strongest verifiable option a pitcher or fridge filter can offer; just read the claim as written. Standards background: 42 vs 53 vs 401.

Related: Is PUR NSF certified? · Does PUR remove lead?

We do not test filters — we index what accredited certifiers publish, with attribution, and make no health or treatment claims. A certification covers a specific model against a specific standard; it is not a general seal of quality. We are not affiliated with NSF International.

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