Plastic is not biodegradable
Some background: Plums Vogue articles from the 90s and early 00 are the Old Testament for fashion writers
PMC 2906761
Most research on the vapour emissions from heated tobacco products have been funded by tobacco companies or carried out by scientists directly employed by them
The 2009 Family Smoking and Tobacco Prevention Act describes flavors as: an artificial or natural flavor (other than tobacco or menthol) or an herb or spice, including strawberry, grape, orange, clove, cinnamon, pineapple, vanilla, coconut, licorice, cocoa, chocolate, cherry, or coffee, that is a characterizing flavor of the tobacco product or tobacco smoke. They are widely sold in stores across the country
This makes it safe to use as a novelty object or conversation starterwithout lingering confusion or discomfort