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AIRMSEN Portable Glass Air Fryer 6.3 QT scores higher on safety - here's why.
The most important dimensions, side by side.
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The glass bowl is described as 'heat-resistant' but AIRMSEN does not confirm it is borosilicate glass for this specific model. Borosilicate has superior thermal shock resistance. The glass is food-safe at cooking temperatures regardless, but the exact type is unconfirmed.
The basket is food-grade aluminum with ceramic nonstick coating. FDA-approved for food contact but scored lower than stainless steel or glass.
The tray is 18/8 stainless steel (equivalent to 304 grade) -- the gold standard for food-contact metal. No coating, no degradation pathway. Your food sits directly on bare stainless steel.
The crisper plate uses ceramic nonstick coating over aluminum. The generic material description did not match specific evaluation bands.
No coating on any surface your food touches. This is the highest possible score -- nothing to chip, degrade, or release chemicals over time.
Cosori markets this as 'PFAS-Free Ceramic Coating' but no independent lab has verified that claim. Ceramic is better than PTFE, but the specific formulation is unknown.
AIRMSEN claims the product is completely free of PFAS, PTFE, and heavy metals. Since there are no coatings at all, the claim is structurally plausible -- but no independent lab has verified it.
Cosori explicitly claims PFAS-free in the product title, which is more transparent than many competitors. But no independent lab has tested or certified the claim.
The glass bowl with convection rack design provides 360-degree hot air circulation around your food, delivering even crisping from all sides.
Square basket with maximum cooking surface area and optimized airflow for even crisping.
At 1600 watts, this unit heats up quickly and maintains temperature well during cooking -- strong for its 6.3-quart capacity.
At 1725 watts with a DC motor, this delivers the fastest preheat and strongest temperature recovery in the category.
400 degrees F covers everything from gentle dehydrating to high-heat crisping. Note that other AIRMSEN models reach 450F, but this specific model maxes at 400F.
450 degrees F covers every cooking task from gentle dehydrating to high-heat searing.
Both the glass bowl and stainless steel tray go straight in the dishwasher. Glass and stainless are inherently more durable in the dishwasher than coated surfaces.
Basket and crisper plate both go in the dishwasher.
AIRMSEN claims 43 dB -- which would make this the quietest air fryer available. For context, 43 dB is about as loud as a quiet library. No independent lab has verified this claim.
Less than 53 dB even on the highest fan speed -- quieter than a normal conversation.
Standard 1-year warranty from AIRMSEN, extendable to 2 years with product registration. Register your product immediately after purchase.
Two-year limited warranty from Cosori, above the industry-standard one year.
Under $100 for a fully uncoated glass and stainless steel air fryer. Competitive with other non-toxic air fryers in the category.
Under $100 for a 1725W air fryer with DC motor, app integration, and PFAS-free coating claim.
Everything you need to make the call - who each one is for, and who should skip it.
Go for it if you...
You want zero coatings on every food-contact surface -- bare glass and bare stainless steel mean nothing to degrade, chip, or leach.
You value being able to see your food cook through the transparent glass bowl.
You want a dishwasher-safe design where both the bowl and tray are easy to clean.
Quiet operation matters -- if the 43 dB claim holds, this is the quietest air fryer available.
Cooking performance is your top priority -- 1725W and 450F deliver the fastest preheat and highest versatility in this price range.
You want quiet operation -- less than 53 dB even at maximum fan speed.
You are comfortable with Cosori's PFAS-free ceramic coating claim without independent lab verification.
You want smart features -- VeSync app integration with shake reminders and preset cooking programs.
The main thing to know
The glass bowl is labeled 'heat-resistant' but not confirmed as borosilicate -- and the 43 dB noise claim is unverified. No UL/ETL safety certification is disclosed despite the unit being sold at major retailers.
Despite explicitly claiming 'PFAS-Free Ceramic Coating' in the product title, no independent lab has tested or verified that claim. No ETL or UL safety certification was found on any retailer listing, and the product carries a California Prop 65 warning for Lead and Chromium.
Skip this if you...
You need confirmed borosilicate glass -- AIRMSEN only says 'heat-resistant glass' for this ASIN.
You require UL or ETL safety certification before purchasing any countertop appliance.
You want third-party PFAS-free verification, not just a manufacturer claim.
You prefer a traditional basket-style air fryer for easy shaking and batch cooking.
You want independently verified PFAS-free coatings -- no lab has tested this product's ceramic coating.
You require ETL or UL safety certification before purchasing countertop appliances.
You want to avoid Prop 65-flagged products -- this unit has warnings for Lead and Chromium.
You prefer uncoated food-contact surfaces like glass or bare stainless steel.
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 deterministic scoring system - the same inputs always produce the same score. For this comparison, we evaluated AIRMSEN and Cosori across 3 independent criteria: Safety (90%), Efficacy (7%), Usability (3%). No sponsored rankings. No paid placements.
Straight answers - no sponsored content, no filler.
The AIRMSEN Portable Glass Air Fryer 6.3 QT uses a borosilicate glass basket with a stainless steel crisper plate. Stainless steel and glass are inherently PFAS-free materials, so this model passes our material safety screen.
Between these two, the AIRMSEN Portable Glass Air Fryer 6.3 QT (borosilicate glass basket, 7.7/10 safety) uses materials I'm more comfortable with at high heat. The Cosori 9-in-1 TurboBlaze Air Fryer 6 Qt's food-grade-aluminum basket scored 5.2/10. 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: AIRMSEN offers 6.3-qt vs Cosori's 6-qt. Overall, I'd lean toward AIRMSEN 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 Fryer across Safety (90%), Efficacy (7%), Usability (3%) using independently verified data. No sponsored rankings. No paid placements. Every score is fully reproducible.
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