A dog hair dryer might seem unnecessary if you already own a personal blow dryer for your hair needs. However, human and dog dryers have some crucial differences. Standard human dryers are too hot for dogs to handle and can accidentally burn or cause your pup to overheat. If that heat contacts your pet's sensitive areas, like its face, ears, genitals and spots where hair is sparse, it could cause injury. You might use your dryer's cool setting to avoid burns, but this lacks the necessary blowing capacity to dry thick fur. Human dryers are insufficiently powered, and the nozzle is too small, so drying them would take significantly longer.