Ventilating duct

Ventilating duct

General ductwork involved with the process of supplying or removing air by natural or mechanical means, to or from any space.
References in periodicals archive ?
Tenders are invited for Provision Of Ventilating Ducts In Toilets At Vba in connection with Maintenance Operation electrical installation And Fans At Vigyan Bhawan Annexe, New Delhi
Plastic bags covered all the windows and special lamps had been installed as well as ventilating ducts for airflow.
Tenders are invited for Moei And Fans At Vigyan Bhawan Annexe, New Delhi Sh Provision Of Ventilating Ducts In Toilets At Vba