About: http://webisa.webdatacommons.org/347624457

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	It is not used to save energy, but to help air circulation and effective separation of dust, smoke, microorganisms such as odor and insects.
http://www.w3.org/ns/prov#wasQuotedFrom	china-air-curtain.com