air cleaner

Noun
  1. A filter that removes dust from the air that passes through it (synset 102691132)
    is a type of: filter - device that removes something from whatever passes through it
    subtypes: filter tip - an air filter on the end of a cigarette; contains material that filters the smoke
    is a part of: ventilator - a device (such as a fan) that introduces fresh air or expels foul air
    same as: air filter

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