Compare Air Fryer
Which scores higher on safety? R3 breaks it down.
The most important dimensions, side by side.
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The cooking vessel is borosilicate glass — chemically inert at any cooking temperature, no coatings to chip or degrade, and fully transparent so you can see exactly what's happening inside. It won't leach anything into your food, full stop.
The basket uses a ceramic nonstick coating that Typhur claims is PFAS-free — but no independent lab has verified this. Without an ICP-MS test, you can't confirm the full coating chemistry. Use non-metal utensils to avoid degrading the surface.
The crisper plate has a ceramic nonstick coating, which doesn't contain PTFE or PFOA per Ninja's claims — but no independent lab has verified it's free of PFAS binders that can appear in sol-gel ceramic formulations. If the coating is your main concern, that's a meaningful gap. Plan for hand-washing and non-metal utensils to extend its life.
The crisper plate has a ceramic nonstick coating, which doesn't contain PTFE or PFOA per the brand's claim. No independent lab has tested the specific formulation, so the full chemistry isn't confirmed. Treat it gently — non-metal utensils only, and hand washing will extend the life of the coating.
ETL Listed means the electrical components passed a safety review — it says nothing about whether the food-contact surfaces are PFAS-free. No independent lab (Mamavation, SGS, Intertek) has tested this fryer's ceramic crisper plate coating. If third-party chemical verification matters to you, it isn't here.
The Typhur Sync carries FCC certification, which covers electrical and radio frequency safety — not the food-contact coating. There's no SGS, Mamavation, or ICP-MS lab testing on the nonstick surfaces. If independent coating verification matters to you, this isn't the fryer.
At 271.93 W/qt, this fryer handles everyday family cooking well — wings, vegetables, reheating, and frozen foods all come out properly. For dense proteins like thick chicken thighs or pork chops, plan on flipping halfway through to get even browning.
At 218.75 watts per quart, you'll get solid results on wings, fries, and smaller cuts. Larger proteins like a whole chicken breast or thick pork chop will cook more like a convection oven — still good, just not the sharp crispness you'd get from a higher-powered unit.
450°F covers the full cooking range: air frying, roasting, high-heat crisping, and finishing. You won't hit a ceiling on any standard recipe. At max temp, food can overcook fast — check it early.
The 450°F ceiling covers everything: frying, roasting, and high-heat crisping. You won't hit a wall with any standard recipe. Just know that at max temp, food can go from perfect to overdone in under 90 seconds.
At 5.7qt, this fryer fits a single-batch cook for a family of 4 (roughly 1 lb of wings plus vegetables) per Good Housekeeping's testing. Ninja hasn't published interior bowl dimensions, so you can't confirm exact usable area — estimated interior diameter is around 9.5 inches based on exterior geometry.
The basket fits 4–6 chicken thighs in a single layer, which means a full family meal in one batch — no waiting, no second round. The tradeoff is the footprint: expect 13–15 inches of counter width.
Every food-contact part is dishwasher-safe, so cleanup is load-and-forget. One caveat: repeated dishwasher cycles will wear down the ceramic nonstick coating on the crisper plate faster than hand-washing would.
Every food-contact part is dishwasher-safe — basket, crisper plate, all of it. After dinner, load the rack and you're done. That alone makes a real difference if you're running this thing daily.
At 72 dB, this is loud enough that you'll need to raise your voice to hold a conversation in the same room while it's running. Evening use in an apartment or open-plan home will be noticeable to everyone nearby.
At 55 dB, the Sync runs noticeably quieter than most basket air fryers, which typically land in the 60–65 dB range. You can hold a conversation or watch TV at normal volume while it's running. It's not silent, but it won't take over the room.
One year covers manufacturing defects — standard for US air fryers. Accidental glass breakage from thermal shock (pouring cold water on a hot bowl) isn't covered after 90 days. If you pay with an Amex or Visa Signature card, you'll typically get the warranty doubled to two years at no extra cost.
You get a standard 1-year manufacturer warranty, which covers defects but not coating wear or fan degradation from regular use. If you pay with an Amex or Visa Signature card, most automatically extend that to 2 years — worth doing at this price point.
Everything you need to make the call — who each one is for, and who should skip it.
Go for it if you...
You cook for 5+ people regularly and the base Crispi's 4qt basket isn't big enough to get dinner on the table in one batch
You want a borosilicate glass cooking vessel — no coatings touching your food, fully transparent so you can watch the cook, and chemically inert even at high heat
You'll actually use multiple cooking modes — air fry, bake, roast, dehydrate, and steam — and want one appliance instead of five
You regularly cook for 3–5 people and need a 10.3-inch square basket that fits a full dinner without batching.
You're sensitive to kitchen noise — the Sync runs noticeably quieter than most basket air fryers.
You want every removable part to go in the dishwasher, including the basket and tray.
You're fine with brand-claimed ceramic nonstick and don't require third-party lab certification.
The main thing to know
The borosilicate glass vessel is genuinely coating-free, but the crisper plate is ceramic nonstick — Ninja claims it's safe, and no independent lab has verified that. You're also paying $120 more than the base Crispi for a larger basket and extra cooking modes, not a safer cooking surface.
The Sync's ceramic nonstick coating is brand-claimed PFAS-free — Typhur hasn't published independent lab verification, so you're taking their word on safety.
Skip this if you...
You need the crisper plate to be independently lab-verified PFAS-free — it's ceramic nonstick with brand-only safety claims, not third-party tested
Your household is 1-4 people and a 4qt basket is enough — the base Ninja Crispi has the same glass vessel for $120 less
You're price-sensitive — at $299.99, this is one of the most expensive air fryers on the market, and glass-vessel alternatives exist at a fraction of the cost
You want SGS or Mamavation lab certification confirming the coating is PFAS-free before buying.
You're deciding between this and the Typhur Dome 2 and budget isn't the constraint — the Dome 2 carries independent certification and higher wattage.
Neither of these quite what you're looking for?
I've reviewed all Air Fryer options at every price pointEvery Air Fryer in our database is scored using R3's V4.2 deterministic rubric — the same inputs always produce the same score. For this comparison, we evaluated Ninja and Typhur across 3 independent criteria: Safety (50%), Efficacy (25%), Usability (25%). No sponsored rankings. No paid placements.
Straight answers — no sponsored content, no filler.
The Ninja Crispi Pro 6-in-1 Glass Air Fryer uses a borosilicate glass basket with a ceramic nonstick crisper plate. Stainless steel and glass are inherently PFAS-free materials, so this model passes our material safety screen.
Between these two, the Ninja Crispi Pro 6-in-1 Glass Air Fryer (borosilicate glass basket, 7.8/10 safety) uses materials I'm more comfortable with at high heat. The Typhur Sync Air Fryer's ceramic nonstick basket scored 6.4/10. In our V4.2 rubric, basket material accounts for a significant portion of the safety pillar, which carries 50% of the overall score.
For families, capacity comes first: Ninja offers 5.7-qt vs Typhur's 8-qt. Noise is worth checking too - Typhur runs quieter at 55dB. For cleanup, both are dishwasher-safe. Overall, I'd lean toward the model that fits your counter space and budget for most families.
304 stainless steel is inherently PFAS-free and won't off-gas at any cooking temperature. Nonstick coatings (PTFE/Teflon) are stable below 400°F but can begin degrading above that threshold. In our V4.2 rubric, stainless and borosilicate glass baskets consistently score higher on the safety pillar. That said, a well-maintained nonstick basket from a reputable brand still meets safety baselines - it's a question of margin, not danger.
We use our V4.2 deterministic rubric with four weighted pillars: Safety (50%), Efficacy (20%), Usability (20%), and Value (10%). For air fryers, safety evaluates basket material composition, Prop 65 compliance, third-party certifications, and PFAS testing. Efficacy covers cooking performance, temperature accuracy, and capacity-to-wattage ratio. Usability scores noise levels, cleanup ease, and warranty terms. Every score is reproducible - the same product data produces the same score.
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