if you want to use a hair dryer on an extension cord, there’s a few things you’ll need to keep in mind. First, it’s important to make sure that the extension cord is long enough to accommodate the length of the dryer. Second, you’ll need to make sure the dryer is plugged into an outlet that can handle the current load (the amount of electricity that flows through it). Third, you’ll need to make sure that both ends of the extension cord are securely plugged into outlets on either side of the dryer. And finally, be sure not to overload your extension cord by having too many things plugged into it at one time.