The chemical components of electronic cigarettes include nicotine, tar, carbon monoxide, propylene glycol, heavy metals, etc.
Specifically, e-cigarette liquid contains nicotine, diluents or solvents (including propylene glycol, vegetable glycerin), flavoring spices or essences.
Among them, glycerin is safe to eat glycerin, but if glycerin contains more impurities, these impurities will either accumulate on the heating wire to form deposits, or enter the lungs with the steam, and then may irritate the bronchial mucosa, or even stay on the bronchial mucosa . In addition, there may be chemical reactions between different flavors to generate unknown substances, and generate harmful substances under heating conditions, which will affect the respiratory system, cardiovascular circulatory system, skeletal system and skin.
Aerosols released by VAPE (e-cigarettes) (referring to tiny particles suspended in the atmosphere) usually contain ethylene glycol, aldehydes, volatile organic compounds (VOC), polycyclic aromatic hydrocarbons (PAHs), tobacco-specific nitrosamines (TSNAS), metals, silicate particles and other elements, and may contain dicarbonyl and hydroxycarbonyl compounds, many of which are carcinogens.