Assertion: anteroom's door | /r/HasProperty | mandatory
Facets:
value: to help maintain the correct pressure
type: PURPOSE
value: for both of these areas
type: LOCATION
Source sentences:
text: Self-closing doors are mandatory for both of these areas to help maintain the correct pressure differential.4, 6, 120 Older health-care facilities may have variable pressure rooms (i.e., rooms in which the ventilation can be manually switched between positive and negative pressure).