Humanscale Review, Is Humanscale Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 6 graded products, Humanscale averages Excellent (75/100). On disclosure, the brand says nothing publicly about PFAS. 6 of its products grade Good or better. Grades are model-based estimates, not lab results.
Worth buying from Humanscale Good or better, safest first
Humanscale
World Office Chair
Steel, aluminum, plastic (polyurethane foam), fabric upholstery
Polyurethane foam off-gassing (VOCs)
Polyurethane cushioning can emit volatile organic compounds, especially when new. This is…
Microplastics
Extended wear and friction on polyurethane foam and synthetic fabrics can generate…
Lower concern; office chair with standard materials and no known PFAS triggers, but no brand transparency.
⚠Risky category by default
Humanscale
Freedom Headrest Task Chair
fabric upholstery, aluminum/steel frame, foam cushioning
VOC off-gassing from polyurethane foam
Polyurethane cushioning may emit volatile organic compounds in the first weeks after…
Flame retardants
Task chairs sold in North America are required to meet cigarette flammability standards…
Lower concern for typical office chair; PFAS risk isn't elevated, but brand offers no transparency.
⚠Risky category by default
Humanscale
Freedom Task Chair
Mesh (polyester/nylon), plastic, steel frame, foam cushioning
VOC off-gassing from polyurethane foam
Office chair foam can release volatile organic compounds during the first few days to…
Polyester/nylon mesh degradation
Over 5-10 years of use, mesh fabrics can develop small tears or pilling. Direct sunlight…
Lower PFAS concern; standard office chair with no known stain or water treatments.
⚠Risky category by default
Humanscale
Freedom Chair with Headrest by Humanscale
mesh fabric, aluminum frame, foam cushioning, polyurethane upholstery options
Volatile organic compounds (VOCs) from polyurethane foam and upholstery finish
Polyurethane foam and any synthetic fabric topcoat can off-gas formaldehyde, toluene, and…
Flame retardants
Office furniture commonly contains halogenated or organophosphate flame retardants to…
Formaldehyde / VOCs
Mesh fabric and foam bonding typically use urea-formaldehyde or melamine-formaldehyde…
Polyurethane degradation under heat or UV
Polyurethane upholstery degrades over time when exposed to prolonged heat, sunlight, or…
Lower PFAS concern for the core structure; upholstery finish unknown, ask for material transparency.
⚠Risky category by default
Humanscale
West Elm Humanscale World LM Task Chair
aluminum frame, foam cushioning, mesh/upholstery fabric
Formaldehyde / VOCs
Humanscale does not disclose whether the mesh or upholstery fabric is treated with…
Azo dyes and other dye-related allergens
The fabric color and pattern depend on dyes that may include azo compounds (particularly…
Fabric antimicrobial or water-repellent treatment (undisclosed)
Many task-chair fabrics are treated with antimicrobials (e.g., triclosan, silver…
Lower PFAS concern for the chair frame itself; fabric treatment status unclear.
⚠Risky category by default
Humanscale
Freedom Ocean Office Chair
Aluminum frame, foam padding, textile upholstery, plastic/polymer base components
Polyurethane foam off-gassing (VOC)
Polyurethane foams can release volatile organic compounds during initial use and over…
Plastic base component degradation
Polymer bases (wheels, casters, adjustment mechanisms) can degrade or break with heavy or…
Lower concern; office chairs carry minimal PFAS risk unless foam or fabric has undisclosed water or stain treatments.
⚠Risky category by default
Every grade uses the same public rubric. How grades work →