Pat chicken wings completely dry with paper towels.
Place wings in large bowl.
Mix baking powder, salt, pepper, garlic powder, and paprika.
Sprinkle seasoning over wings. Toss to coat evenly.
Let sit 5 minutes.
Preheat air fryer to 380°F for 3 minutes.
Arrange wings in single layer. Do not overcrowd. Work in batches if needed.
Air fry at 380°F for 20 minutes. Flip at 10 minutes.
Increase to 400°F. Cook 5 more minutes for extra crispy.
Check wings are golden brown and reach 165°F internal temperature.
Make sauce. Melt butter in saucepan over medium heat.
Add garlic. Cook 1 minute until fragrant.
Remove from heat. Stir in Parmesan, parsley, salt, pepper, and red pepper flakes.
Transfer cooked wings to clean bowl.
Pour sauce over hot wings.
Toss until completely coated.
Transfer to platter. Garnish with extra Parmesan and parsley.
Serve immediately with lemon wedges.