> Theatrical fog machines are not assumed to be safe daily for 50+ years. The first link in my comment is a report on precisely that - workplace health and saf

> Theatrical fog machines are not assumed to be safe daily for 50+ years. The first link in my comment is a report on precisely that - workplace health and safety for theatrical performers and technicians who spend every day in close proximity to high-volume fog machines. >The current consensus is that vaping is harmful. There are undoubtedly some harms associated with vaping (nicotine is associated with a somewhat elevated risk of cardiovascular disease), but the evidence overwhelmingly indicates that it is vastly safer than smoking, which is the most pertinent point of comparison. I haven't thoroughly reviewed the references in your linked article, but one issue leaps out at first glance. The article states "E-cigarettes also contain acrolein, a herbicide primarily used to kill weeds", which is a substantial misrepresentation of the facts. Acrolein is used in some niche applications as an aquatic herbicide, but it is a naturally-occuring byproduct of the thermal decomposition of glycerol and is found in most fried foods. The acrolein content of e-cigarette vapour is far lower than cigarette smoke, and can be reduced to negligible levels through the use of a temperature-controlled vaping device. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/733022/Ecigarettes_an_evidence_update_A_report_commissioned_by_Public_Health_England_FINAL.pdf https://assets.publishing.service.gov.uk/government/uploads/... https://escholarship.org/uc/item/9s90850c https://escholarship.org/uc/item/9s90850c