Traces of vanadium in superior-temperature combustion goods kind droplets of molten vanadates. These attack the passivation layers on metals and lead to significant temperature corrosion, which is a concern especially for internal combustion engines. Molten sulfate and guide particulates even have such impact. risky organic and natural compounds – https://broadfar.com/non-combusted-cigarettes-a-safer-alternative-or-just-a-myth/