White poster with black lettering. Title at top of poster. Visual image is a line drawing of a human figure, exposing the respiratory tract, the major features of which are labeled. Several pollutants are listed on the right side of the poster. Red arrows link the pollutant to the part of the respiratory tract most likely to be affected. A chart appears below the image, arranging the pollutants into five classes. Bottom of the poster features American Lung Association logo and lists sponsor.
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