Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

air cleaner

noun

Definition of air cleaner

: any of various devices for removing impurities (as suspended particles) from air (as by filtering, washing, or electrostatic precipitation)

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of air cleaner

1893, in the meaning defined above

Keep scrolling for more

Learn More about air cleaner

Statistics for air cleaner

Look-up Popularity

Time Traveler for air cleaner

The first known use of air cleaner was in 1893

See more words from the same year

Comments on air cleaner

What made you want to look up air cleaner? Please tell us where you read or heard it (including the quote, if possible).

Show Comments  Hide Comments 

WORD OF THE DAY

redoubtable

Listen to the pronounciation of redoubtable

formidable, illustrious, or eminent

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play
Ask the Editors
Word Games