Finally, the current development of vaping products is tending rather towards purification of the products and of their emissions 3 thanks, in particular, to the drafting of specific standards covering their composition (standard AFNOR XP D90-300 part 2) In addition, studying the toxicological effects of vaping over a long period, as things stand, is almost impossible because the vast majority of vapers are smokers or former smokers
Eur Respir J 22:672688 Masubuchi T, Koyama S, Sato E, Takamizawa A, Kubo K, Sekiguchi M, Nagai S, Izumi T (1998) Smoke extract stimulates lung epithelial cells to release neutrophil and monocyte chemotactic activity
In other words, plenty of people who know flower well also keep a cart for convenience
doi: 10.1016/j.drugalcdep.2007.04.011