Diffuser
A wide, bowl-shaped attachment for a hairdryer that spreads the air to dry curls gently.
A diffuser fits onto the end of a hairdryer and spreads the airflow over a wide area, often through prongs. Curly and wavy hair is cupped in the bowl and dried with low, gentle air, so curls keep their shape and do not blow into frizz. It is quicker than air drying and can add volume at the roots. Many curly-hair routines finish with a diffuser, then scrunch out any stiffness once the hair is fully dry.