Peel and thinly slice sweet potatoes (use a slicer or mandolin for thin, even slices).
Soak sweet potato slices in ice water for 15 - 30 minutes.
Drain slices and pat as dry as possible with paper towels.
Mix olive oil with salt and paprika. In a small bowl, toss a few sweet potato slices with a little of the oil mixture. Only coat as many slices as will fit in your air fryer basket.
Place slices in a single layer in the air fryer basket and cook at 300 degrees for 18 to 19 minutes, shaking the basket every 6 minutes. Watch carefully during the last cooking cycle and adjust cooking time as needed for your air fryer.
Remove chips to a serving bowl and repeat steps 4 and 5 for the remaining slices.
For best results, be sure the sweet potato slices are completely dry.
Do not toss with the olive oil mixture until just before cooking to avoid soggy chips.