Preheat the air fryer to 375°F
Wash the asparagus and trim the woody ends
Pat the asparagus dry
Toss with olive oil, salt, and pepper
Arrange in a single layer in the air fryer basket
Air fry for 7 to 10 minutes
Shake the basket halfway through cooking
Check for tenderness and desired crispness
Add lemon juice, garlic, or Parmesan if desired
Serve immediately