| | Public Health & Safety | Smoking & Tobacco What is the sign that body of a smoker trying to expel mucus buildup in respiratory passages? The sign that body of a smoker trying to expel mucus buildup in respiratory passages is a smoker's cough Smoking & Tobacco - Related Articles What to Expect After a Person Quits Smoking What is the driving limit for alcohol in US? Can non smokers get black lungs? How Do I Report Ohio Smoking Violations? Reasons Smoking Is Bad Smoking in the Presence of Someone on Portable Oxygen What Are the Side Effects of Mixing Chantix and Alcohol?