The healthiest way to dry your hair is to let it air dry but since most of us do not have the time for this we use one of the quickest and easiest ways available today. A hair dryer of course! Although there are two kinds of dryers available in the market today -- the bonnet hair dryer, and the hand held blow dryer -- I think you would agree that most people use the latter in their homes. Hair dryers basically use a motor to blow heated air to dry your hair quickly.