About: http://webisa.webdatacommons.org/394191188

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	In certain embodiments, multi-chamber mask 100 may include buckles, snaps, or other devices to couple multi-chamber mask 100 to one or more straps, which may help secure multi-chamber mask 100 to the user's face during use.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com