Prep the potatoes. Peel and grate the potatoes, then add them to a large bowl and cover with cold water. Soak for at least 10 minutes, ideally 30 minutes.
Drain and rinse the potatoes well to remove excess starch. Transfer to a clean lint-free kitchen towel or cheesecloth and squeeze out as much moisture as possible. Pat dry and place in a large mixing bowl.
Add oil, garlic powder, onion powder, sea salt, and black pepper to the shredded potatoes. Mix well to combine.
Transfer the seasoned potatoes into an air fryer basket, pressing down to form an even, single layer. For extra crispiness, lightly spray the top with cooking spray.
Air fry at 360°F for 14-18 minutes, or until the hash browns are crispy and golden brown.
Serve hot and enjoy your crispy homemade air fryer hash browns.