About: http://webisa.webdatacommons.org/19041340

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	If your oxygen level is found to be low, using less than 15 hours a day has not been shown to provide a benefit, and does not protect your heart, brain and other organs of the body.
http://www.w3.org/ns/prov#wasQuotedFrom	oxygenconcentratorinc.com