PFAS score
Karastan · Carpets & Rugs
Karastan Full Wool Carpet - 4'3" x 6'2"
Lower PFAS concern for natural fiber carpet; Karastan does not disclose stain-treatment chemistry.
Karastan's full-wool carpet is a natural fiber product with inherently lower PFAS risk than synthetic carpets or heavily treated textiles. However, Karastan does not publicly disclose whether traditional stain-resistant finishes (which may contain PFAS) are applied to this line.
The safe swap
Mohawk
Mohawk Basics 24 x 24 Carpet Tile EnviroStrand PET Fiber
75/100 safety
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
100% wool fiber, traditional construction
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Stain-resistant finish
Stain-resistant finishes are a common PFAS use.
Category baseline
furniture is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
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 Carpets & Rugs
Mohawk
Basics 24 x 24 Carpet Tile EnviroStrand PET Fiber
PET (polyethylene terephthalate) fiber
Lower PFAS concern; standard PET fiber carpet unlikely to require PFAS treatments, but no explicit disclosure.
⚠Risky category by default
Beaulieu
Excalibur III - Breezeway
Fabric upholstery (likely polyester or blend)
Limited public data; upholstered furniture rarely discloses PFAS treatments, skip if water-resistant claims exist.
⚠Risky category by default
Interface
FLOR INDUSTRIous Carpet Tile
Nylon 6 fiber with proprietary stain/soil resistance treatment
Lower-concern choice; Interface has made explicit PFAS elimination commitments, though legacy carpet tiles may carry residual risk.
⚠Waterproof or stain-proof treatment
More carpets & rugs 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.