Yu W, Chen Y, Putluri N, Coarfa C, Robertson MJ, Putluri V, Stossi F, Dubrulle J, Mancini MA, Pang JC, et al
Human or animal hair
In each of the SAME runs, the aged smoke was directed to six devices: a sample collector (for electron microscopic analysis on Earth that defined the morphology of the smoke particles), a particle counter, a commercial smoke detector and a mass monitor used to measure particle size, and two different spacecraft smoke detectors, the ionization model used during the space shuttle program and the photoelectric system now aboard the ISS
So imagine this, if these smokersmen in suits that are of course sitting at first-classrefused to stop smoking, the air in the plane would run out within hours, with the consequence being that everyone in the plane would suffocate and die