About: http://webisa.webdatacommons.org/106325081

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A one-way purge valve 24 is integrated into the hood 12 to facilitate the exhaust of perspiration and exhalation gases such as carbon dioxide and moisture from the hood 12 while not allowing the entrance therethrough of outside gases.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com