Materials · Certifications
What Does OEKO-TEX Certification Mean?
OEKO-TEX STANDARD 100 tests a finished textile against a long list of harmful substances.
Priya Raman — Materials & Certifications Editor
Priya reviews fiber content, backings, adhesives and third-party certifications such as GOTS and OEKO-TEX, and verifies claims against finished-product documentation.
Published April 22, 2026 · Last updated September 19, 2026 · Our testing methodology
What it tests
Residues of restricted substances including certain azo dyes, formaldehyde, heavy metals, phthalates and more, measured on the finished article.
Product classes
Class I is the strictest and applies to items for babies and toddlers. A nursery rug carrying Class I is a meaningful signal.
What it does not mean
It is not an organic certification and says nothing about how the fiber was grown or about environmental practices.
GOTS and OEKO-TEX together
The pairing is strong: GOTS for how it was made, OEKO-TEX for what is measurably present in the finished rug.
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