Protect All Waterproofer Spray vs Fabric & Leather Duo-Pack: which is safer?

Where these two actually differ

• We flag PFAS (per-fluoroalkyl substances) in water-repellent coating, Inhalation hazard from aerosol propellant and volatile organics, Coating degradation and microparticle shedding and Accumulation of spray residue on footwear surfaces on the Kiwi and not on the Nikwax.
• We flag Volatile organic compounds (VOCs) in spray carrier, Skin or eye irritation from direct contact and Residue buildup on treated materials over time on the Nikwax and not on the Kiwi.
• The Kiwi is Proprietary waterproof/water-repellent coating (unspecified) where the Nikwax is Fabric and leather waterproofing treatment (wax-based), which is most of the difference in these two grades.
• The gap is 25 points, wide enough that this is not a close call, and the Nikwax is the one to buy.
• We are less certain about the Kiwi grade, at 35% confidence against 62%, because it discloses less.