When selecting a good air fryer, there are several key factors to consider:

1. Capacity: The capacity of the air fryer should be chosen based on your family size and cooking needs. If you're cooking for 1-2 people, a 3L model would suffice. For a larger family of five or more, a 6L or larger capacity would be more suitable.

2. Safety: Safety is paramount when choosing an air fryer. Ensure that the product has a 3C safety certification, which guarantees its quality and safety. Additionally, consider opting for a model with a nationwide warranty for convenient after-sales service.

3. Ease of Cleaning: The air fryer's components, especially the basket or pan, should be detachable and easy to clean. Food-grade materials with a non-stick coating are preferred as they make cleaning effortless.

4. Performance: Test the air fryer's performance before purchasing. Check if the timer and temperature control settings work properly. Also, ensure that the basket glides smoothly without any jamming.

5. Brand and Quality: While there are many brands and models available, it's often safer to choose a well-known brand with a good reputation for quality. This ensures reliability and durability.

6. Power and Heating: Consider the power rating of the air fryer as it determines the cooking speed. Models with a power rating of 1200W or above usually cook food quickly and evenly. Additionally, look for heating methods such as 360° stereoscopic heating or 360° hot air circulation, which provide more uniform cooking.

7. Operation and Controls: The air fryer should have user-friendly controls, whether it's mechanical knobs or digital touch controls. The interface should be intuitive, and the settings should be easy to adjust.

By considering these factors, you can narrow down your options and choose an air fryer that meets your needs and preferences. Remember to read reviews and compare different models to get the best value for your money.