fire damper
noun1
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
Business, Mining Archaic, Historical 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.
- Related terms
- smoke damper