![]() ![]() Īrmenian American inventor Gabriel Kazanjian was the first to patent a blow dryer in the United States, in 1911. It could only be used by having the person sit underneath it. Godefroy invented it for use in his hair salon in France, and it was not portable or handheld. His invention was a large, seated version that consisted of a bonnet that attached to the chimney pipe of a gas stove. In 1890 the first hairdryer was invented by French stylist Alexander Godefroy. Hair dryers have been cited as an effective treatment for head lice and earwax-prevention. The comb nozzle attachment is the same as the airflow concentrator, but it ends with comb-like teeth so that the user can dry the hair using the dryer without a brush or comb.It makes the end of the blow dryer narrower and thus helps to concentrate the heat into one spot to make it dry rapidly. An airflow concentrator does the opposite of a diffuser.This makes it so that the hair is less likely to frizz and it gives the hair more volume. The hair dries more slowly, at a cooler temperature, and with less physical disturbance. It diffuses the jet of air, so that the hair is not blown around while it dries. A diffuser is an attachment that is used on hair that is fine, colored, permed or naturally curly.Hair dryers are available with attachments, such as diffusers, airflow concentrators, and comb nozzles. Some stylists consider the introduction of ionic technology to be one of the most important advances in the beauty industry. Manufacturers claim this makes the hair "smoother". Many feature "ionic" operation, to reduce the build-up of static electricity in the hair, though the efficacy of ionic technology is of some debate. The colder air reduces frizz and can help to promote shine in the hair. This function helps to maintain the hairstyle by setting it. ![]() Many of these dryers have "normal mode" buttons that turn off the heater and blow room-temperature air while the button is pressed. Girl under beauty parlor hair dryer, 1958
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