cigarette consumption over time Smoking - Health Risks, Addiction, History Tobacco Control | Coefficient Giving

The only exception is if a Zippo lighter is completely devoid of fuel, but even then, its subject to airline approval and should be declared at check-in

It's a perspective that might just change your mind

The authors identified high levels of carbonyls which reached or exceeded the respective levels in tobacco cigarettes during the later puff blocks, reaching to ~5 g/puff for formaldehyde, 8 g/puff for acetaldehyde and 3.5 g/puff for acrolein

A foremost limitation is that many cases are unreported/underreported, potentially skewing the data towards more severe cases that warrant medical attention, and cases from geographical locations with access to healthcare services