The best ways to clear out cigarette smoke smell are to ventilate thoroughly, clean surfaces with vinegar or baking soda, wash fabrics, place bowls of vinegar or baking soda around the house to absorb odors, and run air purifiers with HEPA and activated carbon filtration
Analysis of polycyclic aromatic hydrocarbon intake in the US adult population from NHANES 2005-2014 identifies vulnerable subpopulations, suggests interaction between tobacco smoke exposure and sociodemographic factors
Although chewing tobacco is smokeless, it still contains harmful and carcinogenic chemicals, including nicotine
While an activity like smoking may seem frivolous, insufficient or unjust in the employees eyes as a basis for losing ones job, the employer is permitted to enforce a consistently-applied policy and make that decision, just as it is permitted to make any lawful hiring or firing decisions at-will