A diffuser is used with which tool during hairstyling?

A diffuser is specifically designed to attach to a blow dryer, allowing for a gentler and more even distribution of heat and air flow. This tool is particularly beneficial for drying curly or wavy hair without disrupting the natural curl pattern. By spreading the air over a larger surface area, a diffuser helps minimize frizz and maintain the definition of curls, enabling stylists to create beautiful, textured hairstyles.

In contrast, other tools like flat irons, hair rollers, and curling irons do not typically utilize a diffuser, as they serve different purposes in hairstyling. Flat irons are used for straightening hair, curling irons create curls without the need for diffusing airflow, and hair rollers are tools used to set or curl hair without heat.