An air fryer is a small convection oven: a heater, a strong fan and a basket or drawer. The differences that matter come down to the shape of the cooking space, how much of it you need, how easy it is to clean and how loud it is. Wattage and preset counts matter much less.
01Basket, wide drawer, dual-zone or oven-style
A single basket is the classic format: a bucket-shaped drawer under a top heater and fan. It is compact, deep enough for a whole chicken in the 6-quart size and the cheapest way to air fry. The Cosori TurboBlaze and Ninja AF141 are both single baskets; the Ninja's is lower and squarer. The weakness is stacking: food piled in a deep basket needs shaking to brown evenly.
A wide, shallow drawer trades depth for floor area. The Typhur Dome 2 spreads 5.6 quarts over 139.5 square inches and adds a heater underneath, so wings, steaks and pizza cook in one layer and brown on both sides. It cannot take a tall roast.
A dual-zone machine puts two independent baskets side by side, each with its own heater and fan. The Ninja DZ401 lets you run chicken at one temperature and vegetables at another and finish them together. You pay in counter space, noise and baskets that cannot be joined into one large space.
Oven-style air fryers, such as countertop air fryer ovens, use racks and a front door. They fit a sheet pan or a 12-inch pizza and can toast, but they take more counter space and have a larger cavity to heat. We did not pick one here; see the exclusions below.
02Capacity per household
Manufacturers quote quarts, but what limits you is floor area, because food crisps best in a single layer, and rated quarts can overstate the usable space: Consumer Reports measured about 3.8 usable quarts in the AF141's 5-quart basket. As a rule of thumb from the manufacturers' serving guidance and the reviewers' tests:
Check the countertop too. The AF141 is about 11.3 by 14.8 inches and only 10.6 inches tall; the Dome 2 is nearly 20 inches wide; the DZ401 is about 17 by 14 inches and close to 20 pounds. All of them need a few inches of clearance for exhaust.
03Cleanup, dishwasher-safe baskets and coatings
All four picks have removable baskets and crisper plates that the maker or reviewers list as dishwasher safe. Size matters in practice: Homes & Gardens found the Dome 2's parts too big for a compact dishwasher and awkward in a small sink, but called the DZ401 easy to clean in the dishwasher, and Tom's Guide found the AF141's nonstick drawer easy to clean. The Typhur is the only pick with a self-clean cycle, which Typhur says breaks down grease in the upper cavity at high heat; Tech Advisor found it left only a wipe-down, Homes & Gardens was unconvinced.
Coatings are worth a look. Ninja describes the AF141's basket and crisper plate as nonstick, and RTINGS says its crisper tray is ceramic coated rather than PTFE. Typhur describes the Dome 2's as PFAS-free ceramic. Cosori describes the TurboBlaze's as PFAS-free ceramic, but TechGearLab's June 2025 review listed PTFE in the coating of the unit it bought, so check the current listing if this matters to you. Whatever the coating, hand washing with a soft sponge and avoiding metal tongs keeps it working longer.
04Noise
The fan is the noise source, and bigger fans or two fans are louder. Published figures, measured by different sites in different ways, give a rough order:
If the air fryer shares an open-plan room with a TV or a sleeping baby, the Typhur is the quiet choice and the dual-zone Ninja the loud one. The Cosori's lower fan speeds reduce noise when you do not need maximum airflow.
05Temperature range and controls
Most current models reach 450°F; the AF141 stops at 400°F, which leaves less headroom for final browning on wings. The low end matters for dehydrating and proofing: the Cosori goes down to 90°F, the Typhur and the DZ401 to 105°F, and Ninja's product page does not give the AF141's lowest setting. Accuracy and evenness matter more than range. TechGearLab measured the Cosori about 4°F cool but consistent, so recipe times transfer well; we found no comparable figure for the other three. RTINGS found the AF141 fast but slightly uneven, and Tom's Guide saw fries at the edge of its basket brown first. None of the picks has a shake reminder, so set a halfway timer for fries and vegetables.