About: http://webisa.webdatacommons.org/14623069

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	I have no experience with them, so offer no opinion other than to point out that they are twice the cost of old-school unpowered cowl vents.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.ca