About: http://webisa.webdatacommons.org/347155195

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	Although not preferred, a sensor or other device can determine if or when the threshold pressure has been exceeded by the exhalation pressure, and when exceeded the exhaled air is released from the chamber.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com