Air fryer capacity numbers are useful, but they do not tell the whole story. Basket shape, usable cooking area, ventilation clearance and cleaning design can matter more in daily use than a headline litre figure.
Think in food shape, not only litres
Foods such as fries, vegetables and breaded items often cook more evenly when spread in a single layer. A wider basket can therefore be more useful than a deeper basket with the same stated volume.
If you cook whole chickens, tall items or stacked portions, depth may matter more. Consider the meals you actually make rather than choosing the largest number available.
Measure the counter and the clearance
Air fryers need space around vents, and manufacturer manuals may specify minimum clearances. Measure width, depth and height at the location where the appliance will run, not just where it will be stored.
Also check the path for pulling the basket out. A unit that fits under a cabinet may still be awkward if you need to move it forward every time you cook.
Single basket, dual zone or oven style
Single-basket models are simple and compact. Dual-zone models can cook two foods with separate settings but use more counter space and may split total cooking area into narrower compartments. Oven-style models provide shelves and visibility but have different cleaning and airflow behavior.
Choose the format that matches meal composition, not the one with the longest feature list.
Controls should make manual cooking easy
Presets can be convenient, but clear time and temperature controls matter more because recipes and portion sizes vary. Look for readable controls, easy mid-cycle adjustments and a sensible minimum and maximum temperature range for the foods you prepare.
Cleaning determines how often you will use it
Removable baskets and crisper plates collect oil and crumbs. Check whether parts are dishwasher-safe, how many seams and crevices need hand cleaning, and whether replacement parts are available. Non-stick coatings should be cleaned according to the manufacturer instructions to avoid damage.
Power and safety are part of the setup
High-power countertop appliances should be used according to the manual and local electrical requirements. Avoid using extension arrangements that are not rated for the load, and keep ventilation areas clear. If you are unsure about an electrical setup, consult an appropriate qualified professional.
Bottom line
Choose an air fryer around the meals, counter space and cleanup routine in your kitchen. A slightly smaller model that is easy to use and clean can be more valuable than a larger appliance that stays in a cupboard.