In a large bowl, mix the garlic powder, paprika, chili flakes, soy sauce and water together and marinade the torn pieces of tofu, leave to marinate for at least 30 minutes.
In one bowl, combine flour, milk and lemon juice.
In a second bowl, combine the breading ingredients: panko, paprika, chili flakes, nutritional yeast and salt, setting aside for later.
Take out the pieces of marinated tofu and dip into the batter then cover with the breading.
Spray the Air Fryer with cooking oil, and brush the pieces of tofu liberally with oil, select Air Fry and adjust the temperature to 205°C, and fry for 10 minutes, until the tofu is golden and crispy.