Shark’s answer to the Dyson Airwrap is the most powerful hair tool I’ve ever used, and it’s a rare $70 off

Until six months ago, a hair dryer was just a hair dryer to me. For three years, I’d been using one I got at Target for $17, and it worked just fine. But over the holidays, I received Shark’s FlexStyle Air Styling & Drying System — and my mind was blown. This little hair dryer…