What type of brush is considered best for blow-drying hair?

A round brush is considered the best choice for blow-drying hair because it allows for maximum volume and smoothness. The cylindrical shape of the brush helps to create curls, waves, or straight styles while directing heat from the blow dryer precisely where it's needed. As the air from the dryer circulates around the brush, it helps to set the hair in place, achieving a polished look.

Additionally, round brushes often have bristles designed to grip the hair effectively, which helps in pulling the hair taut during the drying process. This tension, combined with the heat, allows for better styling control, ensuring that the hair maintains its shape and has a sleek finish.

While other brush types have their own benefits, such as creating a straight look or accelerating drying time, they do not offer the same versatility and styling options that a round brush does during blow-drying.