Crispi 4-in-1 Portable Glass Air Fryer Cooking System vs Dual Easy Fry Air Fryer 8.3 L: which is safer?

Where these two actually differ

• We flag Thermal fracture or stress in glass cooking vessel, Plastic housing off-gassing (VOCs and formaldehyde) and Electrical hazard or heating element degradation on the Ninja and not on the Tefal.
• We flag PTFE thermal decomposition / fume risk, Coating degradation and microparticle release, Aluminum substrate leaching (if present) and PFAS in manufacturing or coat precursors on the Tefal and not on the Ninja.
• The Ninja is Glass cooking vessel with stainless steel and plastic components where the Tefal is PTFE nonstick coating (Teflon-type) on air fryer cooking surfaces, which is most of the difference in these two grades.
• The gap is 70 points, wide enough that this is not a close call, and the Ninja is the one to buy.