This new hair dryer was made of mainly metal, plastic, and foil. It was a soft decorated bonnet with long hoses attached to the base. This was created to help dry hair faster. A commercial was aired to help sell them. The commercial was aired on the radio and advertised in the newspapers. In 1951 on March 5th, the fourth hair dryer was invented. This new hair dryer was a rigid-hood hair dryer. This hair dryer was commonly used in hair salons. The rigid-hood hair dryer’s hood was very hard and made of plastic. This hood would go over the top of your head and dry your