What is secondhand smoke?
ANSWER
Secondhand smoke is the combination of smoke from a burning cigar or cigarette and smoke exhaled by a smoker.
From: Smoking and Asthma WebMD Medical Reference
Reviewed by Nayana Ambardekar on May 12, 2018
SOURCES:
American Academy of Allergy, Asthma & Immunology: "No Butts About It: Smoking Makes Asthma Worse."
American Lung Association: "What Is Lung Cancer?"
U.S. Environmental Protection Agency: "Indoor Environmental Asthma Triggers - Secondhand Smoke."
SOURCES:
American Academy of Allergy, Asthma & Immunology: "No Butts About It: Smoking Makes Asthma Worse."
American Lung Association: "What Is Lung Cancer?"
U.S. Environmental Protection Agency: "Indoor Environmental Asthma Triggers - Secondhand Smoke."
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