Filter/dilution tunnel. A smoke sample is drawn via a tube in which it can be diluted with air, the ensuing smoke/air mixture is then pulled through a filter and weighed. This is the internationally acknowledged means of measuring smoke from combustion.[66] The nicotine and additives in cigarettes share a https://shanetlbsj.wikipresses.com/5194849/smoking_things_to_know_before_you_buy