![How are Non-Combusted Cigarettes, Sometimes Called Heat-Not-Burn Products, Different from E-Cigarettes and Cigarettes? | FDA How are Non-Combusted Cigarettes, Sometimes Called Heat-Not-Burn Products, Different from E-Cigarettes and Cigarettes? | FDA](https://www.fda.gov/files/ctp-vape-images_0.jpg)
How are Non-Combusted Cigarettes, Sometimes Called Heat-Not-Burn Products, Different from E-Cigarettes and Cigarettes? | FDA
![Comparison of select analytes in aerosol from e-cigarettes with smoke from conventional cigarettes and with ambient air - ScienceDirect Comparison of select analytes in aerosol from e-cigarettes with smoke from conventional cigarettes and with ambient air - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0273230014002505-gr1.jpg)
Comparison of select analytes in aerosol from e-cigarettes with smoke from conventional cigarettes and with ambient air - ScienceDirect
![Toxicity of the main electronic cigarette components, propylene glycol, glycerin, and nicotine, in Sprague-Dawley rats in a 90-day OECD inhalation study complemented by molecular endpoints - ScienceDirect Toxicity of the main electronic cigarette components, propylene glycol, glycerin, and nicotine, in Sprague-Dawley rats in a 90-day OECD inhalation study complemented by molecular endpoints - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0278691517305112-gr4.jpg)