The PAX 3 is consistently ranked as one of the healthiest vaporizers and is an incredibly customizable driving vaporizer suitable for dry herbs and wax. However, obviously, stopping smoking completely and permanently, without replacing it with another nicotine delivery system, is the healthiest option. So, simply comparing vaping to smoking, is obviously healthier and, to the extent that vaping can help smokers quit smoking, vaping is a net positive for public health. Most juices contain both, so if you're looking for a healthier vaping option, select brands that have a higher VG ratio.
While smoking bans and public health advertisements have dramatically reduced the number of people who smoke and have led to significant improvements in public health, smoking and nicotine are so stigmatized that even a healthier alternative, such as vaping, is subject to the same stigma.