Now who would have been doing that
E-cigarettes can damage cells related to innate and adaptive immunity in the respiratory tract, resulting in abnormal mucus composition, reduced epithelial barrier function, impaired phagocytic function, and elevated systemic inflammatory markers (especially type 2 inflammatory cytokines IL-4, IL-5, IL-13)
Concentrations can be even higher than in the mainstream because the cigarette end smolders at a lower temperature and with incomplete combustion
With a focus on health and safety, the shop requires masks and ensures staff disinfect surfaces between visits, providing a quick and convenient experience for customers
A better analogy, perhaps, is with drinking and eating unhealthy foods