fire brigade vs smoke eater

fire brigade

noun
  • A group of people within a corporation or industrial site, organized for the purpose of putting out fires, usually in addition to their normal job. 

  • An organization, often part of a local government, whose purpose is preventing and putting out fires. 

  • A trained unit that can be rapidly deployed to deal with any difficult situation. 

smoke eater

noun
  • A firefighter. 

  • A device or piece of equipment designed to remove smoke from the air. 

How often have the words fire brigade and smoke eater occurred in a corpus of books? (source: Google Ngram Viewer )