“A diffuser can also be used to dry short hairstyles in place,” says Leigh Hardges, a stylist at Maxine Salon in Chicago who uses hair dryer diffusers for special occasions and updos as well. “It’s a ...

Diffusers evenly distribute air through a blow dryer attachment that's usually bowl-shaped, allowing you to work on big chunks of hair at a time. It applies dispersed heat directly to the hair without ...

After years of struggling with my curly hair, I finally “got” it for one key reason: I learned how to use a diffuser.