Grease the air fryer with the vegetable oil and preheat to 400°F
In a large bowl, combine flour, seltzer water, garlic powder, paprika, salt, and pepper and whisk until batter is smooth. Add cauliflower florets to batter and toss to coat evenly
Place cauliflower into air fryer, and cook for 10-15 minutes, tossing occasionally
In a small bowl, mix hot sauce, melted butter, and lemon juice until combined. Remove cauliflower from the fryer and mix with the sauce
Return to the air fryer and cook until browned, about 5-10 minutes
Serve immediately with ranch dressing, celery, and carrots
