Pat dry the snapper fillets with paper towels to remove excess moisture.

Drizzle olive oil over both sides of the snapper fillets, then generously coat them with Cajun seasoning, ensuring even coverage.

Preheat your air fryer to 400°F (200°C) for about 3-5 minutes.

Place the seasoned snapper fillets in the air fryer basket in a single layer, without overcrowding. Depending on the size of your air fryer, you may need to cook in batches.

Air fry at 400°F (200°C) for 8-10 minutes, depending on the thickness of the fillets, flipping halfway through cooking, until the snapper is cooked through and flakes easily with a fork.

Squeeze fresh lemon juice over the cooked Cajun snapper fillets before serving.

Serve immediately while hot, optionally garnishing with fresh herbs like parsley or cilantro.