a filtering device for removing impurities from air: Many cars have air cleaners with replaceable filters.
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Origin of air cleaner
First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for air cleaner
a filter that prevents dust and other particles from entering the air-intake of an internal-combustion engineAlso called: air filter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012