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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-24 · 6 min read · Independent comparison
• COSTWAY Deep Fryer — biggest strength: A real 1700W oil fryer with a 3L oil container and a basket that holds up to 1.46 lbs of frozen fries, plus dishwasher-safe parts (except the heating tube).
• COSTWAY Deep Fryer — biggest trade-off: It uses oil, so you're buying, storing, filtering and eventually disposing of it, and the 302–374°F range is narrower than an air fryer's.
• NTNOEA 8-in-1 — biggest strength: A 1200W non toxic air fryer with a borosilicate glass pot, 360° viewable basket, 8 one-touch presets and a 4.44-quart capacity — no oil required.
• NTNOEA 8-in-1 — biggest trade-off: Air frying can't fully replicate deep-fried texture, and only the glass pot is dishwasher safe.
• Who each is for: COSTWAY for anyone who wants genuine deep-fried food at home; NTNOEA for anyone who wants the best non toxic air fryer experience with zero oil.
The COSTWAY Deep Fryer is unapologetically an oil fryer, and that's the point. A 1700W stainless steel heating element delivers consistent heat, and the control panel keeps things simple: one knob for temperature (302–374°F), one for the timer (up to 60 minutes), and a power indicator so you know it's running. If you've ever wanted restaurant-style chicken strips, shrimp or fries without babysitting a pot of oil on the stove, this is the appliance that does it.
The capacity story is genuinely useful for a countertop unit. The oil container has measurement markings and takes up to 3 liters, and the basket accommodates up to 1.46 pounds of frozen fries in one go. A secure clip holds the basket firmly in place while cooking, which matters more than people expect — a basket that shifts mid-fry is how oil splashes happen.
What I like most about the design is how much thought went into the boring parts. Every handle is insulated to stay cool, the removable lid has both ventilation and a transparent window so you can watch the fry without losing heat, side handles make it easy to move, and anti-slip feet keep it planted. Cleanup is where most fryers lose people, and COSTWAY addressed it: all parts detach easily, and everything except the heating tube is dishwasher safe. Safety-wise you get overheat protection, ETL certification and automatic shut-off.
NTNOEA 8-in-1: Who It's For
The NTNOEA 8-in-1 is the answer for shoppers hunting the best non toxic air fryer. Its inner pot is borosilicate glass rather than a coated nonstick basket, and the housing combines PP, borosilicate glass and stainless steel. If the phrase "non toxic air fryer" is what brought you here, this is the design language you're looking for.
The 360° viewable transparent glass pot is the feature that separates it from most air fryers. You watch food crisp and brown from different angles without opening the lid — and that matters, because opening the lid mid-cook dumps heat, which leads to uneven results and longer cook times. Combined with the touchscreen and digital display, you always know exactly where things stand.
Cooking flexibility is where the "8-in-1" earns its name. Eight one-touch presets cover fries, roasted meat, chicken wings, egg tarts, roasted fish, sweet potatoes, roasted shrimp and steak, each with reference temperature and time settings. Want to go off-script? Adjust time from 1 to 60 minutes and temperature from 176°F to 392°F. The 1200W motor and rapid heating tech bring it up to temperature in minutes, and the 4.44-quart capacity is enough to cook a main, a side and a snack together instead of in separate batches.
Cleanup is straightforward: the glass pot is dishwasher safe and the non-stick coating keeps food residue from sticking. The unit weighs 7.1 pounds and measures roughly 9.84" x 9.84" x 12.6", so it's a compact tabletop footprint with a 31.5-inch cord. Included in the box: the air fryer, a grill, and an English manual.
Side-by-Side: Which Should You Choose?
• Best for authentic deep-fried texture → COSTWAY Deep Fryer. Real oil frying at 302–374°F is simply a different cooking method than hot air.
• Best for non toxic cooking → NTNOEA 8-in-1. Borosilicate glass inner pot, no oil, no coated nonstick basket to worry about.
• Best for watching your food cook → NTNOEA 8-in-1. The 360° transparent glass pot beats COSTWAY's lid window for visibility.
• Best for big batches of fries → COSTWAY Deep Fryer. Up to 1.46 lbs of frozen fries in the basket at once.
• Best for one-appliance versatility → NTNOEA 8-in-1. Eight presets spanning fries, meat, wings, desserts, fish, vegetables and steak.
• Best for precise low-temperature control → NTNOEA 8-in-1. Its range starts at 176°F versus COSTWAY's 302°F floor.
• Best for easy cleanup → tie, with a caveat. COSTWAY allows nearly every part in the dishwasher except the heating tube; NTNOEA allows the glass pot.
• Best for safety features → COSTWAY Deep Fryer. Overheat protection, ETL certification and automatic shut-off, plus insulated handles and anti-slip feet.
If I were buying for myself, I'd pick the NTNOEA 8-in-1. In my opinion, it's the stronger everyday appliance: oil-free cooking, a glass pot I can see straight through, eight presets that remove the guesswork, and a temperature range wide enough for everything from gentle reheating to a 392°F sear. The COSTWAY Deep Fryer is excellent at exactly one thing — real deep frying — and if that's what you crave, nothing else here replaces it. But for most kitchens, most nights, I'd take the air fryer. Check the current price on Amazon before you decide.
Based on the specs here, the NTNOEA 8-in-1 fits that description best: its inner pot is borosilicate glass, the housing uses PP, glass and stainless steel, and it needs no oil at all. The COSTWAY Deep Fryer is a different category — an oil fryer, not an air fryer.
I'd point to the NTNOEA 8-in-1 for most buyers. You get a 4.44-quart capacity, 1200W rapid heating, 8 one-touch presets, adjustable time (1–60 min) and temperature (176–392°F), and a dishwasher-safe glass pot. Whether it's the right buy for you comes down to whether you want oil-free cooking or true deep-fried results.
No single model wins for everyone, and I won't pretend otherwise. What I can say is that the NTNOEA 8-in-1 checks the boxes that matter for this category — glass instead of a coated basket, no oil, digital touch controls, and full visibility while cooking. Compare it against your own must-haves before deciding.
The NTNOEA 8-in-1 is described as an air fryer oven in its own product details, and it behaves like one: eight presets covering roasting, baking-style items and more, plus a large 4.44-quart glass pot. If you want oven-like versatility in a compact tabletop unit, that's the one to look at here.
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See also: YUASDUU 4.44Qt vs NKLOKSD 18Qt: Best Non Toxic Air Fryer, WINNIESHOP 4.44Qt vs YCQKVX 4.23: Best Non Toxic Air Fryer, CHALIGHT 17L/17.96Qt vs CHENDIAN 1200W: Best Non Toxic Air