<http://webisa.webdatacommons.org/186503995>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/186503995>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/186503995>	<http://www.w3.org/ns/prov#value>	"However, filters and other purifying elements used in the existing purifying apparatus are susceptible to changes in temperature and other factors and the purifying capability of the apparatus will fluctuate or deteriorate to thereby make it" .
<http://webisa.webdatacommons.org/prov/448101319>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/186503995> .
<http://webisa.webdatacommons.org/prov/438303914>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/186503995> .