Acadia Outdoor 61in Sofa Cushion vs Santa Barbara Teak Chair Cushion: which is safer?

Where these two actually differ

• We flag Stain-resist fluorinated finishes (PFAS-class), Volatile organic compounds (VOCs) from coating or dyes, Coating degradation and microplastic shedding and Mildew and bacterial growth if moisture trapped on the and not on the Williams Sonoma.
• We flag Flame retardant additives (chemical identity unknown), Water-repellent coating leachables (likely durable water repellent or DWR treatments), Volatile organic compounds (VOC) off-gassing from fabric treatment and Mold and mildew growth if moisture trapped in cushion core on the Williams Sonoma and not on the .
• The is Polyester cushion cover; likely acrylic or polyester-blend upholstery where the Williams Sonoma is Teak wood frame with outdoor cushion fabric, 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.