Pause and shake them in the half way at 10 minutes, and then at 5 minutes interval.
Check the doneness of fries at 20 minutes.
If it's not reached desired crispiness, extend time to another 5 minutes.
Remove once done perfectly.
Sprinkle some salt and herbs and serve hot with any dip.
Notes
1st toss at 10 minutes of cooking, 2nd at 15 minutes. Then keep an eye on the fries to check the desired crispiness.If your air fryer is larger or making fries in smaller quantities, reduce the time to 15 minutes.