What is a hair nozzle used for?

A hair nozzle is an attachment for a hair dryer that directs airflow to achieve specific styling results. It helps concentrate the heat on a particular section of hair, making it easier to smooth or straighten strands, enhance volume, or create defined curls. Nozzles can also reduce frizz by allowing for more controlled drying and styling. Overall, they enhance the efficiency and effectiveness of blow-drying and styling hair.