antismog

[ an-tee-smog, -smawg, an-tahy- ]
/ ˌæn tiˈsmɒg, -ˈsmɔg, ˌæn taɪ- /

adjective

designed to reduce smog by reducing the pollutants released into the earth's atmosphere: an antismog device for a car's exhaust.

Origin of antismog

First recorded in 1965–70; anti- + smog
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019