Seventh Tree · Office Chairs
Coco Sherpa Office Chair
Lower PFAS concern for a basic sherpa office chair, but brand transparency is absent.
The Coco Sherpa Office Chair appears to use standard sherpa fabric and steel frame, materials not inherently prone to PFAS use. However, Seventh Tree provides no public disclosure about treatments, coatings, or PFAS avoidance.
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Fabric upholstery (sherpa/fleece), steel/metal frame
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
furniture is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
The Coco Sherpa uses polyester-blend sherpa (fleece) upholstery over a steel frame. Sherpa fabrics are brushed synthetic textiles often treated with chemical finishes for water resistance, durability, and flame compliance. The steel frame itself is low-risk; the hazard profile depends entirely on what chemical treatments were applied to the fabric during manufacture and whether the fabric sheds microfibers or releases volatile compounds during normal use.
The brand's record and disclosure
Seventh Tree does not publicly disclose material safety data, chemical certifications (e.g., OEKO-TEX, GOTS), or flame retardant chemistry for this chair. No significant recalls or controversies are on record for this specific model. The brand's silence on chemical transparency is typical of budget office furniture vendors and represents a information gap rather than known wrongdoing.
How it compares in its category
Budget office chairs with synthetic upholstery (sherpa, polyester, or mesh) generally carry similar hazard profiles. The Coco Sherpa is a mid-range option; higher-end alternatives often carry third-party certifications (e.g., Greenguard Gold) that reduce uncertainty. Lower-cost alternatives use polypropylene or basic polyester with fewer disclosures. The sherpa material itself is not a red flag relative to competitors, but certification absence is industry-wide in this price tier.
If you buy it
Vacuum or lint-roll the fabric regularly to minimize microfiber shedding and dust accumulation. Avoid exposing the chair to direct sunlight or heat sources for extended periods, as synthetic fibers can degrade and off-gas. Do not use harsh solvents or high-temperature steam cleaning; spot-clean with mild soap and water. Replace the chair if the fabric becomes heavily worn, tears, or develops visible degradation, as damaged upholstery may increase particle and chemical release.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Flame retardant chemicals in sherpa fabric
Sherpa upholstery used in office furniture typically undergoes flame-resistance treatment to meet US furniture flammability standards (CPSC 16 CFR 1633). Chemical composition is not disclosed by Seventh Tree; brominated or organophosphate retardants are common but not confirmed for this model. Risk is low during normal sitting but increases if fabric is damaged or extensively heated.
Azo dyes and colorant safety
Sherpa textiles are frequently dyed with synthetic colorants. No specific testing or warnings exist for the Coco Sherpa. Risk of skin sensitization or dye migration is low with intact upholstery but cannot be ruled out without material analysis. Standard precaution: wash hands after contact if sensitive skin is present.
Microfiber shedding from synthetic upholstery
Sherpa and fleece fabrics naturally shed microscopic synthetic fibers, especially when new or after mechanical wear. Inhalation of small amounts during normal use poses minimal acute risk, but chronic exposure to synthetic microfibers is not yet fully characterized. Regular vacuuming reduces accumulation in the work environment.
Off-gassing from polyester and fabric treatments
New synthetic upholstery may release volatile organic compounds (VOCs) from dyes, finishes, and backing adhesives for the first weeks of use. Seventh Tree provides no air-quality or off-gassing certifications. Odor typically dissipates within 1-3 weeks; ensure adequate room ventilation during initial use.
Steel frame corrosion and rust (long-term)
No coating composition is disclosed for the steel frame. If bare steel or low-quality paint is used, moisture exposure over years could lead to rust and surface degradation, releasing trace iron particles. Standard office use indoors poses minimal risk; high-humidity or outdoor exposure would accelerate corrosion.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 65% 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.
More office chairs 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.