Is LG NSF certified?

Last reviewed July 2026.

Yes. LG filters are listed by NSF against NSF/ANSI standards including 53 — the health-effects standard that covers lead — so the lead claim is one you can actually verify in a public listing.

What the listing actually says

LT1000P: NSF-listed to NSF/ANSI 42, 53 and 401. LG's LT800P is listed to 42 and 53 only — the 401 emerging-contaminant claim does not carry across the LT line.

What those standard numbers mean

• NSF/ANSI 42 — aesthetic effects (chlorine, taste and odour). Not a health claim.
• NSF/ANSI 53 — health effects. This is the standard that covers lead.
• NSF/ANSI 401 — emerging contaminants: PFOA/PFOS, pharmaceuticals, microplastics.

Verify it yourself: every LG row above links the certifier's own listing. If a number here disagrees with the listing, the listing wins — tell us and we'll fix it.

See how LG ranks on cost per certified gallon against every filter we track →

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.