Fabric Protector Weather Defence Aerosol vs Waterproofing Wax for Leather: which is safer?

Where these two actually differ

• We flag Volatile organic compounds (VOCs) and solvent inhalation, Aerosol propellant effects (respiratory/neurological), Skin sensitization from surfactants or residual coating mist and Bioaccumulation risk from repeated fabric contact and dermal exposure 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 water and stain-resistant coating 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.