You might notice that some candles are labeled phthalates free. This is a start, but this does not cancel out all the other toxic synthetic fragrance chemicals still present, including the carcinogens benzophenone and styrene
The piece has some Japanese symbols on the interior metal workings
The TEM preparation involved placing a droplet of each sample (10 L) onto copper grids (Beijing Zhongjing Technology Co., China), and samples were then air dried
Another 2020 study looked at the effect of smoking on early-onset MPB
Neurotoxicology 75:123128 Muthumalage T, Prinz M, Ansah KO, Gerloff J, Sundar IK, Rahman I (2017) Inflammatory and oxidative responses induced by exposure to commonly used e-cigarette flavoring chemicals and flavored e-liquids without nicotine