smok tobacco New Study Looks at Encoding the Odor of Cigarette Smoke Cigarettes, Smokeless Tobacco, and Vapes:

You can use vinegar in a ratio of 1 cup of vinegar to 3 cups of warm water, left overnight to remove cigarette smoke odors in air-conditioned rooms

A recent review by Hiilamo and colleagues observed that, as the salience of health warnings on packs increased, the tobacco industry response moved from a position of relatively innocuous to increasingly litigious [19]

The abundance of another group of bacteria known as Bacteroides was reduced, and these play an important role in breaking down food and producing valuable nutrients, and low levels of Bacteroides have been associated with Inflammatory Bowel Disease (IBD) (3)

Replacing smoking with a pure nicotine alternative, such as NRT eliminates all those other chemicals, and thats definitely a benefit