dust bag vs vacuum bag

dust bag and vacuum bag both are nouns.

Word	Noun	Adjective	Verb	Adverb
dust bag	Yes	No	No	No
vacuum bag	Yes	No	No	No

As nouns, dust bag and vacuum bag are synonyms defined as:

dust bag and vacuum bag: a bag into which dirt is sucked by a vacuum cleaner

dust bag (noun)	vacuum bag (noun)
a bag into which dirt is sucked by a vacuum cleaner	a bag into which dirt is sucked by a vacuum cleaner