Question

define mainstream smoke

Answer 1

Mainstream smoke refers to the smoke that is exhaled by a person who is smoking a tobacco product, such as a cigarette, cigar, or pipe. It can also refer to the smoke that is drawn into the smoker's mouth and lungs before being expelled. This type of smoke contains a mixture of thousands of chemicals, including nicotine, tar, and various other harmful substances, many of which are known to have adverse health effects. Mainstream smoke is distinct from sidestream smoke, which is the smoke that emanates from the burning end of a tobacco product and is released into the air without being inhaled by the smoker.