Many believe that e-cigarettes emit water vapor, but this isn’t actually correct. The “vapor” that you see coming out of an e-cig is not actual water vapor, but rather resembles an aerosol gas, which contains tiny particles composed of nicotine, artificial flavorings and preservatives, glycerin/glycols, and various other chemicals. Recent research suggests that the moist and warm conditions in the lungs keep these particles from evaporating, which could have some implications on health risks associated with e-cigarette use.
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