What Do the Different Attachments on Hair Dryers Do?

Ever wonder what all of those oddly shaped attachments that come pre-packaged with hair dryers actually do? So did I, until I did a little investigating to uncover the puzzle. From concentrators to picks to diffusers and some of the more uncommon accoutrements, follow our nozzle know-how guide for all the details — and we're not just blowing hot air.