STAINMASTER Asher Toasted Oat Brown 39-oz sq yard Solution-dyed polyester Textured Indoor Carpet one_size
Stain-resistant carpet likely treated with PFAS; brand silent on chemistry.
STAINMASTER carpet uses stain-resistant treatment, historically PFAS-based in similar products. Interface discloses no PFAS information. Actual composition unconfirmed without independent testing.
The better-graded swap
Tarkett
Tarkett Home Intrigue Tempt by Factory Direct Floor Store
75/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Solution-dyed polyester with stain resistance treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
What STAINMASTER Asher Toasted Carpet one_size is made of, ingredients and materials
STAINMASTER Asher is solution-dyed polyester, meaning the color is built into the fiber itself rather than applied as a surface coating, which reduces some degradation risks. The "stain resistance treatment" is the critical unknown, Interface has not publicly disclosed the chemistry of their proprietary stain-guard formula, but solution-dyed polyester carpets with stain resistance are typically treated with fluorochemicals (PFAS compounds) to repel water and oil-based soils. Solution-dyed polyester itself is chemically stable and does not leach significant heavy metals or problematic additives in normal conditions.
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
PFAS
Solution-dyed polyester carpets with stain resistance are conventionally treated with PFAS compounds; Interface has not disclosed the chemistry of its STAINMASTER treatment, making PFAS presence highly probable but unconfirmed by the brand.
Source, ATSDR ↗Volatile organic compounds (VOCs) from backing and adhesives
New carpet installation typically releases VOCs from latex backing, adhesives, and dyes for 48-72 hours; this is a general carpet hazard, not specific to STAINMASTER formulation, but is manageable with ventilation.
What’s reassuring
Formaldehyde / VOCs
Solution-dyed polyester carpets do not inherently contain formaldehyde resins; no specific reports link Interface STAINMASTER products to formaldehyde off-gassing beyond typical new-carpet VOC emissions.
Source, ATSDR ↗Heavy metals
Solution-dyed polyester uses dyes integrated into the fiber; no specific safety alerts or recalls exist for STAINMASTER regarding azo dyes or heavy metal contamination in the color itself.
Source, FDA ↗Flame retardants
No public disclosure or industry reporting indicates that STAINMASTER Asher contains added flame retardants beyond standard polyester fiber combustion properties; most residential carpet does not require added flame retardants.
Source, EPA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Interface is a major carpet manufacturer with certification for environmental programs (e.g., ISO 14001, participation in circular economy initiatives), but has maintained silence on PFAS content and stain-treatment chemistry across its product line. The company has not issued public commitments to phase out PFAS in carpet treatments or provide ingredient transparency for stain-resistant products. This silence is notable given that many competitors (e.g., some European manufacturers) now disclose or offer PFAS-free alternatives, and given regulatory pressure in states like California and Washington on PFAS in textiles.
How it compares in its category
Solution-dyed polyester is a standard, durable carpet material with lower concern for leaching compared to solution-dyed nylon. The stain-resistance feature is common in mid-to-premium residential carpet; most competitive products (Mohawk, Shaw, Beaulieu) also use undisclosed fluorochemical treatments, making Interface typical rather than exceptional on PFAS risk. Brands explicitly offering PFAS-free stain treatments remain rare; wool and untreated polyester alternatives eliminate PFAS but sacrifice stain convenience or durability.
If you buy it
Ventilate well during and 48 hours after installation to reduce VOC off-gassing from backing adhesives (a concern for all new carpet, not specific to this product). Do not expose to sustained heat above 85°C (185°F), which is not a practical risk in homes but matters if considering this for commercial kitchens. Regular vacuuming and prompt spot-cleaning with water or mild detergent will maintain stain resistance without reapplication. If you are concerned about PFAS exposure, especially in homes with young children or in high-use areas, contact Interface directly to request PFAS content data before purchase, or consider untreated polyester or wool alternatives.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Stainmaster has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to STAINMASTER Asher Toasted Oat Brown 39-oz sq yard Solution-dyed polyester Textured Indoor Carpet one_size?
- wool plaid, Axminster weave
- We found no PFAS statement from the brand
- Formaldehyde / VOCs
4 hazards checked on this product, all on its full breakdown.
- polyester fiber, untreated
- We found no PFAS statement from the brand
- Formaldehyde / VOCs
4 hazards checked on this product, all on its full breakdown.
- Ceramic tile, porcelain, or stone composite
- We found no PFAS statement from the brand
- Volatile Organic Compounds (VOCs) from installation adhesives and grout
4 hazards checked on this product, all on its full breakdown.
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.