My first thought when I turned this blow dryer on was Wow! This has a lot of power! There are 3 heat settings & 2 speed settings. Even on the highest heat I felt like it didn't get so hot as to damage my hair. It dried my hair quickly  and gave it a lot of volume. I finish with the cool setting. My hair looks healthy & shiny. I didn't even realize I needed a new blow dryer before I got this one. Now my old one is retired & I'll continue to use this one. This is an excellent blow dryer.