Seventh Tree · Office Chairs
Fabric Desk Chair
Insufficient brand transparency; fabric composition and finishes undisclosed, skip unless more details available.
Seventh Tree does not publicly disclose fabric material composition, weave type, or any stain/water treatments applied to this desk chair. Without knowing whether the fabric contains PFAS-based water-repellent coating finishes or synthetic blends, PFAS risk cannot be assessed.
Shop Seventh Tree on Amazon →Material
fabric upholstery (composition unspecified)
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
Seventh Tree has not publicly disclosed the fabric fiber content, weave type, or finish treatments applied to this chair's upholstery. Office chair fabrics are typically polyester blends, cotton, or synthetic microfiber, often treated with stain repellents, flame retardants, and sizing compounds during manufacturing. Without knowing whether this chair uses natural fibers, synthetics, or blends, and what chemical finishes were applied, it is impossible to assess exposure to formaldehyde-releasing resins, brominated or phosphorus-based flame retardants, or dyes that may pose health concerns.
The brand's record and disclosure
Seventh Tree maintains minimal public transparency about material sourcing, chemical treatments, or third-party safety certifications for this product. No major safety recalls, certifications (such as OEKO-TEX, GREENGUARD, or similar), or published material safety data sheets are on record for this brand or model. The absence of documented disclosure is a red flag in the office furniture category, where flame retardant regulations and off-gassing risk are routine concerns.
How it compares in its category
Most mainstream office chair brands (Herman Miller, Steelcase, Autonomous) disclose fabric composition and certifications; many avoid halogenated flame retardants. Seventh Tree's silence on these points places it below established competitors in transparency and likely below typical safety standards for commercial upholstery. Budget office chairs without disclosed specs are common, but the absence of any public material documentation is unusual even in that tier.
If you buy it
Before purchasing, email Seventh Tree directly requesting the fabric fiber content, finishes (especially flame retardant type), and any certifications. Air out the chair in a well-ventilated space for 48 hours after delivery to off-gas any residual volatile organic compounds or formaldehyde. Avoid exposing the fabric to direct heat sources or prolonged sunlight, which can accelerate degradation and chemical release. If the fabric begins to pill, tear, or emit odors within the first year, request documentation of what treatments were applied so you can assess your ongoing exposure.
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.”
Formaldehyde and formaldehyde-releasing resins
Fabric sizing, dyes, and finish resins commonly contain or release formaldehyde; absence of material specs means no way to verify whether Seventh Tree uses formaldehyde-free treatments. Inhalation of low-level formaldehyde from new upholstery is well documented in office environments.
Flame retardants (brominated or phosphorus-based)
Most office chair fabrics are treated to meet flammability standards; these treatments often use halogenated or organophosphorus compounds. No disclosure from Seventh Tree means the type and concentration of flame retardant used is unknown; brominated retardants carry neurotoxicity and bioaccumulation concerns.
Volatile organic compound (VOC) off-gassing
New upholstered furniture typically off-gasses solvents, adhesives, and finish chemicals within the first few weeks. Without GREENGUARD, OEKO-TEX, or equivalent certification, assume standard industrial-grade VOC emissions; individuals sensitive to off-gassing may experience headaches or respiratory irritation.
Azo dyes and colorant toxicity
If the fabric is dyed with conventional azo dyes, some compounds break down to aromatic amines linked to bladder and other cancers; natural indigo or reactive dyes pose lower risk. No dye sourcing disclosure from Seventh Tree means verification is not possible.
Microplastic and fiber shedding
If the fabric is polyester or synthetic microfiber, pilling and shedding of microfibers during use and washing is common, though environmental and health impact of office chair microfiber release remains understudied. No specific recalls or complaints on record for this brand.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 35% 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.