ventilation shaft

English Thesaurus

1. a shaft in a building; serves as an air passage for ventilation (noun.artifact)

hypernym	:	air duct, air passage, airway,
definition	:	a duct that provides ventilation (as in mines) (noun.artifact)

hypernym	:	shaft,
definition	:	a vertical passageway through a building (as for an elevator) (noun.artifact)

part meronym	:	ventilating system, ventilation, ventilation system,
definition	:	a mechanical system in a building that provides fresh air (noun.artifact)