According to a 2009 study, it would be possible to collect a carbon tax on 80 percent of U.S
Thorne D, Adamson J, Sticken ET, Wieczorek R, Behrsing H, Steiner S, et al
Inhalation exposes the user to not only to the intended substance, but harsh unknown chemicals that the lung cilia cannot handle, including but not limited to ultra-fine particles, carbonyls, cutting agents, diluents, organic volatile compounds, flavorants like diacetyl and 2,3-pentanediol, and more (2)
The temperature control and wattage elements are actually a part of these ecig mods
if the treatment program includes a daily schedule, make sure a "pocket version" is kept for easy reference