Hair-Dryer Attachments: What They Are and How to Use Them

Perfect for those with wavy or curly hair, this attachment helps to reduce the intensity of your blow dryer's air flow while also taming frizz. The most common diffusers, like the kind that comes with the Revlon Light and Fast Hair Dryer ($30), use their prongs or "fingers" to lift hair, creating sculpted, softly volumized styles. More uncommon is a flat design, like the Segbeauty Diffuser Attachment ($19), which essentially does the same thing but with less oomph.