A detailed comparison of air fryers was carried out by Gabrielle Thery, focusing on models ranging in price from 29 to 399 euros. The study aimed to evaluate multiple factors such as cooking performance, ease of use, safety, and versatility. In the laboratory, various quantities of frozen fries were tested, including the "optimal" amount specified in the user manual (if more than 400 grams) and the maximum quantity (filling the tray two-thirds full). During cooking, the fries were mixed at least once, and more frequently if the manual recommended it. In addition to fries, other items were tested, including four chicken thighs, four small white bread rolls, a homemade Lorraine quiche with a maximum diameter of 16 centimeters, and a homemade chocolate cake with the same maximum diameter. For air fryers with two independent cooking zones, the synchronization function was used, with one tray holding fries and the other holding chicken thighs. For each cooking session, the set temperature, cooking time, and energy consumption were recorded. The evaluation criteria included the appearance, texture, crispness, and taste of the food, as well as the ease of use, which covered manual instructions, operation, programming, visibility through the device's windows, cleaning, storage, application, and versatility. Noise levels were measured at a distance of 0.50 meters and evaluated by three experts. In addition to these factors, the quality of manufacturing was assessed, along with electrical and thermal safety checks. This comprehensive analysis aimed to provide consumers with a clear understanding of the performance and usability of various air fryer models on the market.