Once the smoke is exhaled it becomes " environmental tobacco smoke" or ets. At that point the chemicals change and become harmless. Banning smoking indoors is like banning a specific type of music. It's no wonder many states choose to not ban smoking indoors, they are still awaiting scientific evidence that it is harmful. None yet.....still waiting....
Second-Hand Smoke Proven Harmless -- Again - The Rush Limbaugh Show
Scientific Evidence Shows Secondhand Smoke Is No Danger | Heartlander Magazine
Second-Hand Smoke Proven Harmless -- Again - The Rush Limbaugh Show
Scientific Evidence Shows Secondhand Smoke Is No Danger | Heartlander Magazine