fire damper

See also: firedamper

English

Alternative forms

• firedamper

Noun

fire damper (plural fire dampers)

1. A passive fire protection product used in heating, ventilation, and air conditioning ducts.
2. A damper which closes off an air duct automatically in the event of fire so as to restrict the passage of fire and smoke.
3. (historical, archaic, mining) A mine worker who detects and clears a mineshaft of firedamp by intentionally burning or blowing it up.

   Jack is a former fire damper who was injured in an explosion.