Glass Air Fryer Self-Cleaning & Non-Toxic vs Crispi 4-in-1 Portable Glass Air Fryer Cooking System: which is safer?

Where these two actually differ

• We flag Aluminum leaching from base/housing, PTFE coating degradation (heating element or housing coatings), Borosilicate glass thermal stress and breakage and Coating off-gassing from heating unit (unverified materials) on the Fritaire and not on the Ninja.
• 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 Fritaire.
• The Fritaire is borosilicate glass where the Ninja is Glass cooking vessel with stainless steel and plastic components, which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.