Water and electric hair dryers are a dangerous combination! Between 1984 and 2004 there were 104 deaths and 43 electric shock injuries due to hair dryers falling into bathtubs or sinks filled with water. Since 1991, hair dryer manufacturers have been required to include GFCIs (ground fault circuit interrupters) on dryer cords. GFCIs cut off electricity to prevent serious shock. Thanks to these devices, the number of hair dryer-related deaths has dropped to an average of two per year.