Isn better ventilation of premises the answer?
There is no safe level of exposure to secondhand smoke. Ventilation systems improve comfort by removing the smell and visibility of smoke. They do not remove toxic carcinogens from the air, and are therefore not an acceptable alternative to going smoke-free. The weight of scientific evidence across the world supports this view. The World Health Organization has concluded: ‘Since there is no evidence for a safe exposure level (to second hand smoke), legislation limited to ventilation design and standards cannot achieve smoke-free workplaces and public places’.