What is the primary purpose of the concentrator attachment on a blow dryer?

The primary purpose of the concentrator attachment on a blow dryer is to control airflow to a specific area. When the concentrator nozzle is attached, it narrows the airflow allowing for more precise styling. This directed airflow is beneficial for techniques such as smoothing hair, creating sleek looks, or targeting specific sections during styling. It enables the stylist or user to focus the heat and airflow exactly where it’s needed, making it easier to create styles with more control and detail.

Unlike the other options, which either relate to aspects not specifically tied to the concentrator's design and function (such as increasing heat or reducing noise), this attachment’s main role is about precision in controlling the airflow, directly supporting effective hairstyling techniques.