Does A.O. Smith remove lead?

Yes

1 A.O. Smith model we track is independently certified to remove lead — a reverse-osmosis filter.

Based on the itemized NSF, WQA & IAPMO certified-model listings we track for A.O. Smith (2 of 7 models) — coverage for this brand is partial, so we only state what is confirmed certified, not what isn’t.

Which A.O. Smith models are certified

Certification is per model — make sure the product you buy is one of these specific certified models, not just the same brand.

Certified model	Type
A.O. Smith AORO-50	reverse-osmosis	Buy on Amazon →

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About lead

No safe level. Damages developing brain/nervous system in children; linked to lower IQ, kidney and cardiovascular harm in adults. Usually enters water from corroding pipes/solder, not the source.

What A.O. Smith filters are certified to remove

Across the A.O. Smith models we track, here’s what their certifications actually cover.

✓ lead ✓ fluoride ✓ arsenic ✓ chromium-6 ✓ copper ✓ nitrate ✓ TDS (total dissolved solids)

See every filter certified for lead — all brands, ranked.

Certified for lead →

Other brands & lead

PUR Yes Brita Yes ZeroWater Yes Waterdrop Yes APEC Yes iSpring Yes Doulton Yes Multipure Yes eSpring Yes Pentair Yes 3M Yes Express Water No Bluevua No Samsung Yes LG Yes Whirlpool Yes Frigidaire Yes GE Yes

How we know: we normalize the public certified-product listings from NSF, WQA, and IAPMO. A “yes” means a specific A.O. Smith model is listed as certified for lead. See our methodology.