PFAS score
S'well · Filtered Water Bottles
S'WELL Water Bottle
Lower concern, stainless steel bottles rarely require PFAS, but S'well does not publicly disclose material treatments or PFAS policy.
S'well water bottles are constructed from double-wall stainless steel, a durable material that typically does not require Teflon-family coating coatings or water-repellent treatments. The brand has not publicly disclosed any PFAS-related statements or third-party testing.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Double-wall stainless steel (primary container material)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
No PFAS disclosure
No public statement about PFAS in this product.
Stain-resistant finish
Stain-resistant finishes are a common PFAS use.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Filtered Water Bottles
LifeStraw
Go 2.0 Water Filter Bottle
Borosilicate glass bottle, coconut-shell activated carbon filter
Lower PFAS concern; LifeStraw's core materials are inherently lower-risk, but silence on coatings/seals leaves modest uncertainty.
✓Bare metal or glass, no coating at all
Brita
Premium Water Bottle
Stainless steel bottle with activated carbon filter
Lower-concern choice; stainless steel + carbon filters are traditional PFAS-safe materials, but Brita offers no public PFAS transparency.
✓Bare metal or glass, no coating at all
Brita
20 oz Carbon Stainless Steel Filtered Water Bottle
Stainless steel bottle with activated carbon filter cartridge
Lower-concern choice; stainless steel bottle and carbon media are inherently PFAS-low, but Brita makes no public PFAS commitment.
✓Bare metal or glass, no coating at all
More filtered water bottles grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.