SILENCER USING BUILDING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a silencer using building structure capable of reducing the setting space of the silencer and a ventilation duct to reduce the size of a building. SOLUTION: This silencer 10 for ventilating and silencing a room mounted with a pump 70 is set in an carrying-in and -out port 63 for carrying in and out the pump provided on a ceiling 61 above the pump 70 installed in the building 60. The silencer 10 is provided in the part of the ventilation duct 13 for supplying or discharging air to the room mounted with the pump 70. The silencer 10 is integrally mounted on a carrying-in and -out port lid 20 attachably and detachably mounted so as to cover the carrying-in and -out port 63.