Wither you use a eGo or 510 (both out of China refer to size), ‘ juiced’ (eliquid added) or a dry hit (no vapor), vaping: (slang for the use of e-cigarettes) is being found to be dangerous.
Heavy metals, toxic and potentially carcinogenic (if inhaled) are found in the liquid first generation e–cigarette brands. Researchers (Johns Hopkins Bloomberg School of Public Health) found high levels of toxic metals in the liquid that creates the aerosol that is inhaled by e–cigarette users.
Included were analysis for presence of cadmium, chromium, lead, manganese and nickel.
Another danger comes from smokers is ‘stacking’. That is using multiple batteries in an e-cigarette to achieve a higher total voltage. Present evidence suggests this can be potentially dangerous.