Preheat the air fryer to 400°F (200°C) for 5 minutes.
Pat the salmon fillets dry with paper towels.
In a small bowl, combine kosher salt, black pepper, garlic powder, and smoked paprika.
Rub the olive oil evenly over the salmon fillets, then season both sides with the spice mixture.
Place the salmon fillets skin-side down in the air fryer basket, making sure they do not overlap.
Cook the salmon in the air fryer at 400°F (200°C) for 10 minutes, or until the salmon reaches an internal temperature of 145°F (63°C) and flakes easily with a fork.
While the salmon cooks, prepare the hot honey glaze. In a small saucepan over low heat, combine honey, sriracha sauce, apple cider vinegar, red pepper flakes, and fresh lemon juice.
Stir the mixture continuously until it is warm and well combined, about 2-3 minutes. Remove from heat.
Once the salmon is cooked, transfer it to a serving plate.
Brush the hot honey glaze generously over the top of each salmon fillet.
Garnish with chopped fresh parsley and serve immediately.