Assertion: damper | /r/HasProperty | mechanical device
Facets:
value: in chimney
type: LOCATION
value: in a duct
type: LOCATION
Source sentences:
text: A damper is a mechanical device in a duct or chimney that regulates airflow.
text: Damper (flow), a mechanical device in a duct or chimney that regulates airflow
text: Damper (flow), a mechanical device in a duct or chimney that regulates airflow