About: http://webisa.webdatacommons.org/240620213

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	As filters get clogged with dust and other household grime, the heater has to work harder to force warm air through the filter, so a clean one will help the unit run more efficiently.
http://www.w3.org/ns/prov#wasQuotedFrom	apartmentguide.com