Someone would have to smoke 15 to 20 cigarettes back to back over the brief period of time, which is impossible for anybody to withstand.
Some companies have a one month money back guarantee, others have weeks. The fact is if training machines . https://Digitaljournal.com/pr/news/press-advantage/contractors-state-license-center-launches-innovative-zoom-classes-for-future-contractors-in-los-angeles