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Compare Air Fryers
Which scores higher on safety? R3 breaks it down.
The most important dimensions, side by side.
Aluminum without food-grade qualifier — unconfirmed whether anodized, treated, or raw. Raw aluminum can leach into acidic foods. Score 4 reflects disclosed material without food-grade certification.
Aluminum without food-grade qualifier — unconfirmed whether anodized, treated, or raw. Raw aluminum can leach into acidic foods. Score 4 reflects disclosed material without food-grade certification.
nano-ceramic: engineered nano-scale particles (1–100nm) have documented enhanced penetration risk under abrasion vs standard ceramic — SKL explicitly rejected Ninja Crispi for 'nano-ceramic with limited transparency'. proprietary-not-disclosed: 'nonstick' without coating name — cannot assess PFAS/PTFE content. Both score 1 per opacity principle.
nano-ceramic: engineered nano-scale particles (1–100nm) have documented enhanced penetration risk under abrasion vs standard ceramic — SKL explicitly rejected Ninja Crispi for 'nano-ceramic with limited transparency'. proprietary-not-disclosed: 'nonstick' without coating name — cannot assess PFAS/PTFE content. Both score 1 per opacity principle.
All confirmed food-grade material families: borosilicate glass (chemically inert, heat-resistant), 304/316/18-8/18-10 stainless (FDA 21 CFR compliant, non-reactive, corrosion-resistant). Explicit grade confirmation required to score 10 — 'stainless' alone maps to score 8. Both families recommended by primary sources as safest available.
All confirmed food-grade material families: borosilicate glass (chemically inert, heat-resistant), 304/316/18-8/18-10 stainless (FDA 21 CFR compliant, non-reactive, corrosion-resistant). Explicit grade confirmation required to score 10 — 'stainless' alone maps to score 8. Both families recommended by primary sources as safest available.
Brand self-reports PFAS-free or PTFE-free without naming a certifying body or publishing a test report. SKL: 'PFAS-free does not guarantee a product is completely non-toxic.' No evidentiary weight, but positive claim is better than silence.
Brand self-reports PFAS-free or PTFE-free without naming a certifying body or publishing a test report. SKL: 'PFAS-free does not guarantee a product is completely non-toxic.' No evidentiary weight, but positive claim is better than silence.
Serious Eats 34-model test: square baskets 'consistently outperform round for crisping quality' — more surface area, better airflow. Glass-bowl-convection-rack provides 360° airflow. Both represent optimal cooking geometry.
Serious Eats 34-model test: square baskets 'consistently outperform round for crisping quality' — more surface area, better airflow. Glass-bowl-convection-rack provides 360° airflow. Both represent optimal cooking geometry.
Strong performance. RTINGS top-pick (DZ550) measured 1510W, scored 8.2 in air frying performance.
Fastest preheat, strongest temperature maintenance. Tom's Guide top pick (Ninja Pro) at 1750W rated 'supremely powerful'.
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Noticeable but not disruptive. Philips 3000 at 65 dB.
Loud — Ninja Pro at 72 dB (loudest in Tom's Guide testing).
1 year: baseline industry standard.
1 year: baseline industry standard.
$161–300: premium range.
$161–300: premium range.
Everything you need to make the call - who each one is for, and who should skip it.
Go for it if you...
You want borosilicate glass containers that are chemically inert and heat-resistant.
You accept nano-ceramic crisper plates as a compromise for the glass-bowl design.
The 62 dB noise level matters -- this is quieter than most air fryers on the market.
Dishwasher-safe glass containers and crisper plates simplify daily cleanup.
You want the most powerful glass air fryer available -- 1800W is best-in-class.
You need 450F max temperature for high-heat cooking like searing.
You accept nano-ceramic crisper plates and the glass container design tradeoff.
The 6-in-1 functionality with two container sizes adds versatility for your kitchen.
The main thing to know
The borosilicate glass container is excellent, but your food rests on crisper plates coated with nano-ceramic -- engineered nano-scale particles that Sustainably Kind Living explicitly rejected for limited transparency. The crisper plate base is aluminum without a food-grade qualifier. SharkNinja claims PFAS-free and PTFE-free, but no independent lab has verified it.
Same nano-ceramic crisper plate concern as the Crispi 4-in-1, with bare aluminum base and limited coating transparency per Sustainably Kind Living. At 299 dollars, this is 120 dollars more than the Crispi 4-in-1 but scores identically on safety. The extra cost buys 300W more power and louder operation at 72 dB -- the loudest air fryer tested by Tom's Guide.
Skip this if you...
You want zero coating risk -- nano-ceramic has the same transparency concerns as undisclosed coatings per SKL.
You need independently verified PFAS-free testing, not just a manufacturer claim.
You want stainless steel crisper plates with no coating at all (e.g., Fritaire).
You require UL or ETL safety certification -- none is disclosed for this model.
You are noise-sensitive -- 72 dB is the loudest air fryer tested, louder than a normal conversation.
The 300-dollar price point seems high when the cheaper Crispi 4-in-1 has the same safety profile at 180 dollars.
You want zero coating risk -- nano-ceramic has limited transparency per Sustainably Kind Living.
You require independently verified PFAS-free testing or UL/ETL certification.
Neither of these quite what you're looking for?
I've reviewed all Air Fryers options at every price pointEvery Air Fryers in our database is scored using R3's deterministic scoring system - the same inputs always produce the same score. For this comparison, we evaluated Ninja and Ninja across 3 independent criteria: Safety (90%), Efficacy (7%), Usability (3%). No sponsored rankings. No paid placements.
Straight answers - no sponsored content, no filler.
The Ninja Crispi 4-in-1 Glass Air Fryer uses a borosilicate glass basket with a bare-aluminum 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 4-in-1 Glass Air Fryer (borosilicate glass basket, 4.5/10 safety) uses materials I'm more comfortable with at high heat. The Ninja Crispi Pro 6-in-1 Glass Air Fryer's borosilicate glass basket scored 4.5/10. In our scoring system, basket material accounts for a significant portion of the safety pillar, which is our highest-weighted scoring factor.
For families, capacity comes first: check the capacity specs for your family size. 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 scoring system, 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.
R3 uses a deterministic scoring system - the same inputs always produce the same score. We evaluate each Air Fryers across Safety, Efficacy, Usability using independently verified data. No sponsored rankings. No paid placements. Every score is fully reproducible.
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