Skip to main content
If you've spent any time comparing allergy bedding, air purifiers, or cleaning products online, you've probably seen "OEKO-TEX certified" and "AAFA certified" or "asthma and allergy friendly" used almost interchangeably, sometimes on the same product page, sometimes by reviewers who treat them as two versions of the same seal of approval. They're not. They test completely different things, and knowing the difference will change which claim you actually care about for your own symptoms.
Jump to a Section
Guide Contents
What OEKO-TEX Standard 100 Actually Tests
OEKO-TEX Standard 100 is a chemical-safety certification for textiles. Every component of a certified product, down to the thread and the zipper pull, gets tested against a list of more than 1,000 regulated and potentially harmful substances, including limits aligned with REACH, CPSIA, and the ECHA candidate list of substances of very high concern.
The testing gets stricter depending on how much skin contact the product has. OEKO-TEX groups products into four classes, and Class 1, baby items, carries the tightest chemical limits of any class, tighter than adult bedding or home décor fabric. Certification is renewed annually, not granted once and forgotten.
What OEKO-TEX Standard 100 does not test: dust mite penetration, pollen or pet dander barrier performance, or any biological allergen at all. It is exclusively about chemical residue in the finished textile.
What the AAFA Certified Asthma & Allergy Friendly Mark Actually Tests
The Certified asthma & allergy friendly® mark is a different kind of certification, administered by Allergy Standards Ltd (ASL) under a program developed with AAFA's medical and scientific council. Rather than screening for harmful chemicals, it's built around reducing a person's actual exposure to indoor asthma and allergy triggers, developed from scientific literature review and tested at independently monitored labs. A product has to pass every test in the published standard, not just some of them, to carry the mark.
This is the certification that's actually built around the question most allergy sufferers are asking: will this product measurably reduce my exposure to the things that trigger my symptoms? OEKO-TEX doesn't attempt to answer that question at all; it isn't designed to.
The Difference, In One Table
| OEKO-TEX Standard 100 | AAFA Certified Asthma & Allergy Friendly | |
|---|---|---|
| What it tests | Harmful chemical residues (1,000+ substances) | Reduction of asthma and allergy trigger exposure |
| Administered by | OEKO-TEX association / independent textile labs | Allergy Standards Ltd, on behalf of AAFA |
| Renewal | Annual | Product-specific, per the published standard |
| Answers the question | "Is this fabric free of harmful chemicals?" | "Will this product reduce my allergy or asthma symptoms?" |
| Best used for | Chemical-sensitivity concerns, baby items, general toxin avoidance | Dust mite, pollen, pet dander, and general indoor allergen reduction |
Neither one is "better" in the abstract. They answer different questions, and a product can reasonably hold one, both, or neither, depending on what it's actually designed to do.
Why "Hypoallergenic" Isn't a Certification At All
It's worth naming the claim that isn't a certification, because it shows up far more often than either real one. The FDA has stated plainly that there is no federal standard or definition governing the word "hypoallergenic." Any manufacturer can print it on a label with zero independent testing behind it. That doesn't make every hypoallergenic claim false, but it does mean the word carries no verification on its own, which is exactly the gap that OEKO-TEX and AAFA Certified were built to fill with actual lab testing.
Where AllergyStore Stands
We'd rather be specific than vague here. A number of our AllergyCare bedding lines, including our cotton mattress encasings, pillow covers, and comforter covers, carry OEKO-TEX Standard 100 certification, meaning the fabric itself has been independently tested against that 1,000-plus substance chemical list. That's stated on each certified product's own page, not just implied at the collection level.
We do not currently hold AAFA Certified asthma & allergy friendly certification on any product. We're not going to claim it or imply it through vague language elsewhere on the site. It's a certification we're actively evaluating for our core dust-mite-barrier bedding lines, and if that changes, this page will be updated to reflect it, with a link to the actual certificate.
Frequently Asked Questions
Does OEKO-TEX certification mean a product is dust-mite or allergen resistant?
No. OEKO-TEX Standard 100 tests textiles against a list of over 1,000 potentially harmful chemical substances, things like formaldehyde, heavy metals, and banned dyes, following limits that get stricter for products with more skin contact, such as baby items. It says nothing about how well a fabric blocks dust mites, pet dander, or pollen. A product can be OEKO-TEX certified and have no allergen-barrier performance at all, and a product can have excellent allergen-barrier performance without being OEKO-TEX certified. They are separate claims.
Is AAFA Certified the same as "hypoallergenic"?
No, and the difference matters. The FDA has stated there is no federal standard or definition governing the word "hypoallergenic," so any manufacturer can put it on a label without independent verification. The Certified asthma & allergy friendly mark, administered by Allergy Standards Ltd on behalf of AAFA, requires a product to pass every test in a published, science-based standard at an independent lab before it can carry the mark.
Which certification should I look for if I have dust mite allergies specifically?
The Certified asthma & allergy friendly mark is the one built around reducing exposure to indoor asthma and allergy triggers, which includes dust mite allergen. OEKO-TEX Standard 100 is worth looking for as a separate, additional signal that the fabric itself is free of harmful chemical residues, which matters most for anyone with chemical sensitivities or for baby items, but it isn't a substitute for allergen-barrier testing.
Does AllergyStore's bedding carry either certification?
Several AllergyStore bedding products, including our AllergyCare cotton mattress encasings, pillow covers, and comforter covers, carry OEKO-TEX Standard 100 certification, which is noted on each certified product's own page. We do not currently hold AAFA Certified asthma & allergy friendly certification on any product line and won't claim otherwise; it's something we're actively evaluating.
The Bottom Line
OEKO-TEX Standard 100 tells you a textile is free of harmful chemical residues. AAFA Certified asthma & allergy friendly tells you a product has been independently tested to reduce actual allergen and asthma trigger exposure. "Hypoallergenic" tells you nothing on its own. Check which question you're actually trying to answer before you decide which label matters for your purchase.
Shop AllergyStore's allergy bedding
Sources
OEKO-TEX®, STANDARD 100 overview: https://www.oeko-tex.com/en/our-standards/oeko-tex-standard-100/
AAFA, Certified Asthma & Allergy Friendly Program: https://aafa.org/programs/certified-asthma-allergy-friendly/
U.S. FDA, statement on the term "hypoallergenic" (as cited via AAFA Certified program materials)
Want the complete picture? Everything on this page is part of our free Practical Guide to Allergy-Free Living, 35 years of allergy expertise covering dust mites, pet dander, air quality, laundry, and more. Start at the beginning or jump to the section that matters most to you.
Disclaimer: This content is for educational and informational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider regarding allergies, asthma, or other medical conditions.