Lightly brush your Air Fryer mesh with oil.
Preheat for 8 to 10 minutes at 200 degrees.
In the meanwhile, wash, cut or chop the Sweet Potatoes (with skin) lengthwise and pat them dry to remove excess moisture.
In a bowl add some salt to taste and a tbsp of oil.
Mix well and then add the sweet potatoes.
Toss everything well and place them in the preheated Air Fryer.
Air Fry for 10 minutes at 200 degrees. Remove, toss them lightly and then Air Fry at 180 degrees for 8 to 10 minutes.
Repeat the process for the next batch. Serve them immediately with a cup of tea and/or ketchup.