what does smoking cigarettes do Health Effects of on Your Body Tobacco smoking - Wikipedia

The honest answer is: We dont know yet

If you find soot or dusty residue, sweep and mop nearby floors to prevent odors from being redistributed

Graphic images of lung disease, cancer warnings and plain packaging on cigarettes have become commonplace but the UK government is looking to go one step further and include inserts with messages of advice on how to stop smoking in packaging

smoke particles can quickly clog filters and spread odor Turn off heating or cooling systems temporarily to prevent the circulation of contaminated air through the ductwork Continue ventilation for several hours or days depending upon the degree of smoke exposure Ventilation is your first line of defense

CODE 11-17-3(a) (2003).