Original sentence: Mouth breathing in public is sometimes considered to be less socially acceptable or manly in a dangerous form or attractive than nose breathing, as mouth breathers can appear to have a somewhat "slack jawed" look, and mouth breathing can cause or exacerbate bad breath
Edited sentence: Mouth breathing in public is sometimes considered to be less socially acceptable or attractive than nose breathing, as mouth breathers can appear to have a somewhat "slack jawed" look, and mouth breathing can cause or exacerbate bad breath