I can't think of a reason other than the skeeve factor to have a dedicated hair dryer. Although, I don't have a need for a hair dryer otherwise, so it would be dedicated by default.. lol.. Another method to consider is to put the thawed rat in a plastic bag (I double bag and reuse the bags) and submerge in hot water. It's worked well for me. I've never tried a hair dryer though, so I don't know if that is a better method.