About: http://webisa.webdatacommons.org/187425961

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	Now, I know about the air filters you can buy for a few hundred to a few thousand dollars that will suck the air into your bunker from the outside filtering things such as radiation and other toxins providing fresh breathable air inside.
http://www.w3.org/ns/prov#wasQuotedFrom	2012forum.com