sa Waterproof Mattress Protector Fitted Sheet vs Vintage Linen Bed Cover: which is safer?

Where these two actually differ

• We flag Phthalates and plasticizers in polyurethane, Volatile organic compound (VOC) off-gassing from polyurethane coating, Coating degradation and microparticle shedding over time and Bacterial and mold growth if moisture is trapped on the Keet and not on the Parachute.
• We flag Azo dyes or heavy metal pigments, VOC off-gassing or odor and Mildew or mold growth if damp on the Parachute and not on the Keet.
• The Keet is Polyester/polyurethane waterproof coating (unspecified DWR agent) where the Parachute is 100% linen, no reported coating, 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 Parachute is the one to buy.
• We are less certain about the Keet grade, at 55% confidence against 82%, because it discloses less.