Crispi 4-in-1 Portable Glass Air Fryer Cooking System vs 4 Qt. Black Air Fryer With Window: 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 Oster.
• We flag Non-stick coating degradation (PTFE or unknown polymer), Coating flaking into food and Volatile organic compounds (VOCs) off-gassing on first use on the Oster and not on the Ninja.
• The Ninja is Glass cooking vessel with stainless steel and plastic components where the Oster is Stainless steel body; interior cooking surface unspecified, which is most of the difference in these two grades.
• The gap is 60 points, wide enough that this is not a close call, and the Ninja is the one to buy.
• We are less certain about the Oster grade, at 35% confidence against 75%, because it discloses less.