Passive Fire Protection (PFP) is a group of systems that compartmentalize a building through the use of fire-resistance rated walls/floors. Compartmentalizing your building into smaller sections helps to slow or prevent the spread of fire/smoke from one room to the next. PFP helps to limit the amount of damage done to a building and provides its occupants more time for evacuation. PFP includes fire/smoke dampers, fire doors, fire proof paints, sealants and fire walls/floors. Dampers are used to prevent the spread of fire/smoke throughout the building through its ductwork. Fire doors help to compartmentalize a building. Firestopping helps to separate the building into compartments.