Preheat the air fryer to 390ºF.
Remove the salmon from the packaging; season the skin with salt. When the air fryer is at temperature, carefully place a sheet of parchment inside, and place the salmon on top, skin side up. Cook for 7 minutes.
Carefully turn the salmon over and season it (sprinkle with salt and brush it with a glaze, or drizzle with a little olive oil and season with a rub or just with salt and pepper). Continue to cook until the salmon is done to your liking, 6 to 10 minutes longer. Serve hot, or let cool, wrap and refrigerate to serve later.