Cig-a-likes look similar to combustible cigarettes.[7] In addition to nicotine, propylene glycol, and vegetable glycerin, e-liquids contain benzyl alcohol, terpenes, pyrazines, formaldehyde, acetaldehyde, acrolein, and toluene.[8] The inhalational safety of these compounds is unknown.[9] The presence of diacetyl in e-liquids is a concern because it is a known pulmonary toxin and has a propensity for causing bronchiolitis obliterans, also known as popcorn lung.[9] Of particular concern is the addition of vitamin E acetate in tetrahydrocannabinol-containing e-liquids purchased on the black market because it appears to be associated with the recent outbreak of acute e-cigarette, or vaping, product use-associated lung injury (EVALI).[10-12] Further research is necessary to better characterize the inhalational health risks of these compounds
Here's one of those fancy lighters in action
That said, the lack of a filter can make cigar smoke feel far more intense even if it is not inhaled, and can be associated with an increase in tar intake and carcinogens
Availability may vary by location, and many areas restrict the delivery of nicotine products through third-party apps
These chemicals can leach into salt and fresh water and are toxic to fish
