By the late 20th century, smoking came to be viewed in a decidedly negative light, especially in Western countries
However, in a room where a great deal of odor is being generated (like a cigar room), this may not provide enough immediate odor mitigation
The diameter of cigarette smoke particles constantly changes, and as the particles coalesce after their formation, they grow in diameter
Nicotine and tar can stick to the tooth surface
Smoking seems like a "trifle" compared to food or medicine, but from the point of view of laboratory diagnostics it is an active physiological factor
With a few contingencies including that patrons must be 21 or older and no alcohol or tobacco can be sold on premises a local jurisdiction may allow for the smoking, vaporizing, and ingesting of cannabis or cannabis products on the premises of a licensed retailer