Must possess the physical ability to work primarily with fingers, climb and balance, see clearly at close (less than 20 inches) and far (20 feet or more) distances, judge distances and spatial relationships, identify and distinguish colors, observe an area that can be seen up and down or the left and right while eyes are fixed on a given point, and adjust the eye to bring an object into sharp focus. Work environment is in an emergency firefighting environment, with work in intense life-threatening conditions and exposure to loud noise, wet or humid conditions, fumes, or airborne particles, toxic or caustic chemicals, outdoor weather conditions, vibrations, extreme heat, and extreme cold.