I'm not sure. But if you are going somewhere without electricity, do you really think you should be bothered about blow-drying your hair? lol
Why don't you ask your hairdresser, or have a look on Argos, or Ebay...
I have a hairdryer that runs off the cigarette lighter in the car,its not all that powerful but its fine for when we go camping, I bought it in a camping shop so you could try one local to you.