ErgoChair Pro+ Green Mesh vs World Office Chair: which is safer?
Humanscale World Office Chair is our pick, better on PFAS and on the overall hazard picture.
Autonomous
ErgoChair Pro+ Green Mesh
PFAS grade
Excellent 75/100
Overall grade
Good 63/100
Verdict
Buy
Hazard flags
⚑ 3
Material
mesh fabric (polyester), steel frame
Confidence
72%
PossibleVolatile Organic Compound (VOC) off-gassing
PossiblePolyester microfiber shedding
PossibleSteel frame corrosion and rust contact
Our pick
Humanscale
World Office Chair
PFAS grade
Excellent 75/100
Overall grade
Good 67/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Steel, aluminum, plastic (polyurethane foam), fabric upholstery
Confidence
72%
PossiblePolyurethane foam off-gassing (VOCs)
PossibleMicroplastics from foam or synthetic upholstery wear
Where these two actually differ
- We flag Volatile Organic Compound (VOC) off-gassing, Polyester microfiber shedding and Steel frame corrosion and rust contact on the Autonomous and not on the Humanscale.
- We flag Polyurethane foam off-gassing (VOCs) and Microplastics from foam or synthetic upholstery wear on the Humanscale and not on the Autonomous.
- The Autonomous is mesh fabric (polyester), steel frame where the Humanscale is Steel, aluminum, plastic (polyurethane foam), fabric upholstery, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
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