Weather Defense Fabric Protector 10 oz vs Waterproofing Wax for Leather: which is safer?

Where these two actually differ

• We flag Inhalation of spray propellant and volatile organic compounds (VOCs), Skin and eye irritation from direct spray contact, Off-gassing and odor persistence after application and Bioaccumulation risk if PFAS-based (unconfirmed) on the Guardsman and not on the Nikwax.
• We flag Respiratory irritation or fume inhalation during application and PFAS in water repellency treatment on the Nikwax and not on the Guardsman.
• The Guardsman is Proprietary fabric protector spray coating (unspecified chemistry) where the Nikwax is wax-based waterproofing, 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 Guardsman grade, at 35% confidence against 78%, because it discloses less.