Vape aerosol is not just water vapor

The key question

E-cigarettes create an aerosol that can contain nicotine, particles, metals, and other harmful chemicals. A sweet smell does not describe what the lungs receive. CDC distinguishes having fewer harmful chemicals than cigarette smoke from being safe. Long-term effects remain incompletely understood, and device or liquid differences complicate comparisons. Someone who does not smoke has no health reason to start vaping based on a comparison with a more harmful product. [1]

Separate nicotine from smoke exposure

Nicotine drives dependence, while tobacco smoke adds many toxic exposures. E-cigarettes have a different exposure profile, but aerosol is not simply harmless water. The relevant question is not only whether one product contains fewer substances than another: age, pregnancy, secondhand exposure, and continued cigarette use change the context. Avoiding initiation and supporting cessation are different conversations, and both should use clear information without blaming people who need help. [1]

Putting it into practice

Keep the distinction between relative exposure and proven safety clear. [1]

Differences between products do not establish safety for children or during pregnancy. [1]