What Is OekoTex Standard 100? (And Why Institutional Buyers Should Care)

What Is OekoTex Standard 100? (And Why Institutional Buyers Should Care)

OekoTex Standard 100 is an independent certification that tests textile products against over 1,000 harmful substances and confirms they are safe for human contact. It covers every component of the finished item — fabric, threads, dyes, finishes, and accessories — not just the raw fibre. A product carrying the label has been tested by an independent OekoTex partner institute and verified free from substances including banned azo dyes, heavy metals, pesticide residues, formaldehyde, and PFAS compounds. Certification is renewed annually.

If you manage procurement for a care home, hospital, hotel, or school and you've seen OekoTex Standard 100 on a product listing and weren't sure what it actually means for your residents, guests, or compliance documentation — this is the plain-English explanation.

What Actually Gets Tested

The 1,000+ substances covered by OekoTex Standard 100 include categories that matter specifically for institutional textile procurement:

Banned azo dyes — certain azo dyes can break down into carcinogenic compounds on contact with skin. OekoTex tests for 22 specific azo dyes banned under EU and UK regulations.

Heavy metals — lead, cadmium, chromium VI, and others can be introduced during dyeing and finishing processes. OekoTex sets limits stricter than current UK/EU legal requirements in several categories.

Pesticide residues — raw cotton is typically treated during farming. OekoTex tests the finished textile for residual pesticide compounds that survive the manufacturing process.

Formaldehyde — used in fabric finishing processes to reduce creasing. Can cause skin irritation and respiratory sensitivity. OekoTex limits are well below the levels that cause reactions in sensitive individuals.

pH value — fabric pH outside 4.0–7.5 (the natural range of healthy skin) can cause irritation, particularly in prolonged skin contact. OekoTex tests and limits pH for all product classes.

PFAS compounds — per-fluorinated substances used in water and stain-resistant finishes. Increasingly restricted due to persistence in the environment and links to health effects.

The practical point: OekoTex Standard 100 tests for more substances than are currently prohibited by UK or EU law. A certified product is not just legally compliant — it goes beyond the legal baseline.

The Four Product Classes

OekoTex classifies textiles into four groups based on skin contact intensity, with Class 1 carrying the strictest limits:

Class 1 — products for babies and children under 36 months. The most stringent class. Applies to cot bedding, infant clothing, and similar items.

Class 2 — textiles in direct, prolonged skin contact. This is where most AHT bedding and towels are certified — duvet covers, sheets, pillowcases, and towels that are in contact with skin for hours at a time. The limits in Class 2 are stricter than in Classes 3 and 4.

Class 3 — textiles without direct or prolonged skin contact. Outer garments, curtains, upholstery fabric.

Class 4 — home textiles with no regular skin contact. Decorative items, furniture filling.

For care homes and hospitals purchasing certified bedding, Class 2 certification is the relevant benchmark to look for — and to document in procurement records.

What OekoTex Does NOT Certify

This section prevents the most common misunderstanding in institutional procurement.

OekoTex Standard 100 is not an organic farming certification — that is GOTS (Global Organic Textile Standard), which covers the entire supply chain from farm to factory and requires organic fibre sourcing.

It is not a supply chain ethics certification — that is Sedex, which covers labour conditions and responsible sourcing through independent audit.

It is not a fire safety certification — that is BS 7175, which governs flame retardancy testing for bedding and textiles in institutional settings.

It is not a sustainability certification covering carbon footprint, packaging, or environmental impact beyond chemical inputs.

These are four different standards, each covering a different part of the supply chain. AHT holds multiple certifications — OekoTex on our goose feather and down duvet range, GOTS on our bamboo collection, Sedex for our supply chain, and BS 7175 on our flame retardant bedding range. They work in parallel, not as substitutes for each other, and none replaces the others.

Why It Matters by Setting

Care homes: Elderly residents typically have thinner skin with reduced barrier function, meaning chemical compounds can be absorbed more readily through prolonged contact with bedding. OekoTex Class 2 certified bedding is the appropriate standard for care home procurement and is increasingly referenced in quality frameworks and CQC documentation.

NHS and hospital procurement: NHS supply chain frameworks increasingly include chemical safety requirements for patient-contact textiles. OekoTex Standard 100 is widely accepted as a baseline RSL (Restricted Substance List) reference in healthcare procurement.

Hotels: OekoTex certification supports allergy communication to guests. A hotel can legitimately state that its bedding has been independently tested and confirmed free from harmful substances — a meaningful claim in an era where guests with chemical sensitivities increasingly read product labels.

Schools and nurseries: Products for children under 36 months require Class 1 certification — stricter limits than Class 2. For primary school age and above, Class 2 is appropriate.

How to Verify a Certificate

Every OekoTex certified product carries a unique certificate number. You can enter it at oeko-tex.com/labelcheck to confirm: that the certificate is currently valid, which institute issued it, and what the certified product scope covers. OekoTex certificates expire and are renewed annually — a certificate number from three years ago may no longer be active.

AHT holds OekoTex Standard 100 certification on our goose feather and down duvet range. If you need to verify our certification for procurement, compliance, or documentation purposes, contact us directly and we'll provide the certificate details: 01204 653023 or info@abtex.co.uk.

FAQs

What does OekoTex Standard 100 certified mean? 

It means the finished textile product has been independently tested against over 1,000 harmful substances — including heavy metals, banned dyes, pesticide residues, and formaldehyde — and confirmed free from harmful levels of each. It covers every component of the product, not just the outer fabric. Certification is renewed annually by an independent OekoTex partner institute.

Is OekoTex the same as organic? 

No. OekoTex Standard 100 tests the finished product for chemical safety. It makes no requirement about how or where the raw fibre was grown. A certified product may contain conventionally farmed cotton. Organic certification (GOTS) is a separate standard covering fibre origin and manufacturing processes across the supply chain.

Does OekoTex certification mean a product is hypoallergenic? 

Not in the clinical sense. OekoTex confirms freedom from harmful substances, which reduces the risk of chemical irritation — relevant for sensitive skin. It does not certify against allergens such as feather proteins, dust mite proteins, or latex. These are separate allergy considerations that OekoTex doesn't address.

How do I verify that a product's OekoTex certificate is still valid? 

Visit oeko-tex.com/labelcheck and enter the certificate number from the product label or supplier documentation. The check confirms current validity, the certifying institute, and the product scope. Certificates expire annually — always verify against a current certificate, not a printed label that may carry an older number.