Seventh Tree · Office Chairs
OSP Home Furnishings Mallory Mid-Back Office Chair
Lower-concern office chair; standard materials unlikely to contain PFAS, but no brand transparency.
This mid-back office chair uses conventional materials, mesh, foam, fabric, and steel, that typically do not require PFAS for function. No public evidence of Teflon-family coating coatings or water/stain-resistant treatments.
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Fabric upholstery, foam cushion, mesh back, 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
This chair combines polyester or polyester-blend fabric upholstery, polyurethane foam cushioning, and a steel or aluminum frame with mesh back paneling. Polyurethane foam in office seating is a common cushioning material that does not inherently leach harmful chemicals under normal sitting conditions. The fabric and foam do not require high-temperature processing in use, eliminating thermal degradation pathways that trigger volatile organic compound (VOC) release. No lead, cadmium, or Teflon-type coating coatings are typical in standard office chair construction.
The brand's record and disclosure
Seventh Tree (parent of OSP Home Furnishings) maintains a silent public stance on PFAS and does not appear to publish third-party certifications such as Oeko-Tex or GREENGUARD for this model. No recalls, safety alerts, or documented health complaints specific to the Mallory chair have been identified in public records. The brand does not volunteer transparency about flame retardant chemistry or VOC testing, which is typical of mainstream office furniture makers but limits independent verification of safety margins.
How it compares in its category
Mid-back office chairs at this price point rarely undergo rigorous chemical testing unless certified by third parties. The Mallory's fabric and foam construction is standard and carries no higher risk profile than comparable chairs from larger manufacturers. Brands offering certified alternatives (e.g., Steelcase, Herman Miller) disclose flame retardant type and off-gassing data; OSP does not, placing this chair in the middle of transparency but not at a safety disadvantage relative to peers in its tier.
If you buy it
Air out the chair in a well-ventilated space for 24-48 hours after unboxing to allow any initial off-gassing of manufacturing residues to dissipate. Avoid prolonged exposure to direct sunlight or heat sources above 120°F, which could stress polyurethane foam. Inspect fabric seams and foam every 12-18 months for degradation; replace cushions if foam compresses permanently or fabric tears, as exposed foam poses no acute hazard but indicates end-of-life. Use a damp cloth to spot-clean fabric; avoid solvent-based cleaners that may degrade polyester fibers.
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.”
Polyurethane foam off-gassing (VOC release)
New polyurethane foam can emit low levels of volatile organic compounds, particularly isocyanates and amine catalysts, during the first days to weeks. OSP does not disclose VOC test data (e.g., ISO 16000 results), so actual emission levels are unknown; airing in ventilation mitigates this transient risk.
Flame retardant additives (type and content unspecified)
Office chair upholstery and foam typically contain flame retardants to meet California Technical Bulletin 117 or similar standards. Seventh Tree does not publicly identify which retardants are used (e.g., brominated, phosphorus-based, or PFAS-free alternatives). Without this information, risk level cannot be quantified; PFAS-free options exist in the market.
Formaldehyde in fabric adhesives or finish resins
Standard polyester fabric used in office seating does not inherently require formaldehyde-releasing resins for durability. No public reports of formaldehyde complaints from this model or brand exist. Risk is low if adhesives and finishes meet typical industry emission standards, though confirmation via third-party test is not available.
Azo dyes in upholstery fabric
Polyester fabrics can be dyed with azo dyes, which may contain carcinogenic amines if poorly controlled. No specific dye or chemical composition data is published for the Mallory chair. Risk is minimal under normal indoor use (no ingestion, skin contact with finished fabric is safe), but sourcing details are undisclosed.
Aluminum or steel frame corrosion and leaching
Metal frames in office chairs do not typically leach aluminum or iron into the environment under normal use. Corrosion risk is low in typical indoor humidity and temperature; cosmetic rust or paint chipping poses no acute hazard, though frames should be checked for sharp edges if damage occurs.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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.