Hans J. Niederberger, firefighter, Fire Station 7, Fire and Emergency Services,practices nozzle techniques to ensure fire safety in the event of a fire. Using the wrong nozzle technique can extinguish too much of a fire, increasing steam drastically. Extreme exposure to steam can injure and possibly kill victims in addition to subjecting them massive flames and smoke inhalation. - Hans J. Niederberger, firefighter, Fire Station 7, Fire and Emergency Services,practices nozzle techniques to ensure fire safety in the event of a fire. Using the wrong nozzle technique can extinguish too much of a fire, increasing steam drastically. Extreme exposure to steam can injure and possibly kill victims in addition to subjecting them massive flames and smoke inhalation.