air filter

English Thesaurus

1. a filter that removes dust from the air that passes through it (noun.artifact)

hypernym	:	filter,
definition	:	device that removes something from whatever passes through it (noun.artifact)

hyponym	:	filter tip,
definition	:	an air filter on the end of a cigarette; contains material that filters the smoke (noun.artifact)

part meronym	:	ventilator,
definition	:	a device (such as a fan) that introduces fresh air or expels foul air (noun.artifact)