The 1890s brought one of the first self contained breathing apparatuses into the fire service. The helmet and fire masks were on one unit with the air tank strapped to the rear of the helmet. The eye glass portion of the helmet had wiper blades on the inside of the helmet to remove the condensation. The control mechanism was in the center of each eye lens. The lower center of the helmet has a horn, which could be operated by the person wearing the helmet. Squeezing the rubber ball on the end of the horn forced air through it, making it sound.