Particulate matter from electronic cigarettes and conventional cigarettes: a systematic review and observational study

Read the study

This study looked at the existing evidence on second-hand vaping. Researchers also measured the amount of fine particles in the homes of a vaper, a smoker and two non-smokers

What it Found

There were much lower levels of particulate matter in the vaper’s home than in the smoker’s home. However, it was slightly higher than in the non-smokers’ homes.

Based on this, they concluded that e-cigs emit toxicants, including fine particles.

What’s Wrong With it?

The results themselves show the big problem with using this study to claim e-cigarettes aren’t safe for bystanders. The vaper’s home was almost indistinguishable from the non-smokers’ homes.

The difference per cubic metre between the non-smokers’ and the vaper’s home was less than one millionth of a gram. In the smoker’s home, levels were 60 times higher.

Analysis of the study

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