an apparatus for extracting extraneous or harmful particles from air.
单词 | θ61418 |
释义 | the world > physical sensation > cleanness and dirtiness > freedom from impurities > removal of impurities > ventilation and air-conditioning > [noun] > air-conditioner (4) air filter1853 an apparatus for extracting extraneous or harmful particles from air. air washer1876 an apparatus for cleaning air that passes through it, typically by removing particulate matter from it and humidifying it. air conditioner1909 An installation or appliance for air-conditioning a room, building, vehicle, etc. conditioner1938 spec. = air conditioner, n. |
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