air cleaner

American  

noun

1. a filtering device for removing impurities from air.

   Many cars have air cleaners with replaceable filters.

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air cleaner British  

noun

1. Also called: air filter.  a filter that prevents dust and other particles from entering the air-intake of an internal-combustion engine

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Etymology

Origin of air cleaner

First recorded in 1925–30

Example Sentences

"That way your air-con system is less likely to be a source of infection and irritation and more likely to actually make the air cleaner."

From BBC

You might consider using portable high-efficiency air cleaner in a room where you spend the most time.

From Los Angeles Times

This can be a desired effect because it makes the air cleaner for a while -- but over time, the colour changes and needs to be renewed.

From Science Daily

An odor reducing air cleaner, right, also runs inside the home.

From Los Angeles Times

"In other words, all the efforts for the past 20 years by the EPA to make our air cleaner basically have been lost in fire-prone areas and downwind regions. We are losing ground."

From Science Daily