Riviera Striped Light Filtering Curtain vs Seaton Textured Cotton Light Filtering Curtain: which is safer?

Where these two actually differ

• We flag Undisclosed fluorochemical light-filtering finish (PFAS risk proxy), Polyester microfiber shedding during wash and wear, Formaldehyde or formaldehyde releasers in dyes or finishing resins and Azo dyes (carcinogenic metabolites from reductive cleavage) on the Pottery Barn and not on the Pottery Barn.
• We flag Azo dyes (synthetic dye toxicity) and VOC off-gassing (formaldehyde, toluene, xylene from sizing or packaging adhesives) on the Pottery Barn and not on the Pottery Barn.
• The Pottery Barn is Polyester blend with light-filtering treatment/finish where the Pottery Barn is 100% cotton, uncoated, which is most of the difference in these two grades.
• The gap is 45 points, wide enough that this is not a close call, and the Pottery Barn is the one to buy.
• We are less certain about the Pottery Barn grade, at 42% confidence against 78%, because it discloses less.