Other chemical components, including triglycerides, plant oils, petroleum distillates, and diluent terpenes have been found in bronchoscopy specimens of EVALI patients
Cats, dogs, and even birds can be hurt by the secondhand smoke from their owners, and that clearly bothers smokersso much so that they might consider quitting

[27] Alberto Aziani et al., Empty Discarded Pack Data and the Prevalence of Illicit Trade in Cigarettes (BOTEC Analysis, LLC, January 17, 2017), 24, [28] Alberto Aziani et al., Empty Discarded Pack Data and the Prevalence of Illicit Trade in Cigarettes (BOTEC Analysis, LLC, January 17, 2017), 2, [29] Alberto Aziani et al., Empty Discarded Pack Data and the Prevalence of Illicit Trade in Cigarettes (BOTEC Analysis, LLC, January 17, 2017), 24, [30] Alberto Aziani et al., Empty Discarded Pack Data and the Prevalence of Illicit Trade in Cigarettes (BOTEC Analysis, LLC, January 17, 2017), 2, [31] Alberto Aziani et al., Empty Discarded Pack Data and the Prevalence of Illicit Trade in Cigarettes (BOTEC Analysis, LLC, January 17, 2017), Table 10, [32] Wang, Xu et al., Tax Avoidance and Evasion: Cigarette Purchases from Indian Reservations Among US Adult Smokers, 2010-2011, Public Health Reports 132, no
And there is plenty that we dont know about e-cigs