West Elm Andes Sofa 77 vs Custom Signature Sectional: which is safer?

West Elm Andes Sofa 77 is our pick: better on PFAS and on the overall hazard picture.

Our pick

Greenguard

West Elm Andes Sofa 77

PFAS grade

A 100/100

Overall grade

C 70/100

Verdict

Buy with care

Hazard flags

⚑ 4

Material

Upholstered seating with Greenguard certification

Confidence

72%

PossibleFormaldehyde from wood frame and adhesives

PossibleVolatile organic compounds (VOCs) from foam and fabric finish

LikelyFlame retardants in foam and/or fabric

Why this gradeBuy

Thuma

Custom Signature Sectional

PFAS grade

C 75/100

Overall grade

F 45/100

Verdict

Buy with care

Hazard flags

⚑ 4

Material

upholstered sectional with fabric/foam/frame construction

Confidence

62%

PossibleFlame retardants (brominated or halogenated)

PossibleFormaldehyde-based foam binders and adhesives

PossibleSynthetic fabric dyes and finishing chemicals

Why this gradeBuy

Both products run through the same public rubric: 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 →

More upholstered furniture: see the full ranking