>>2846253
not inhaling has always been a thing with pipe and cigar smokers. unless the guy like barfing his guts out, but that's the exception rather than the rule.
>how come cigarettes
They're extensively processed to get the pH of the smoke to match the pH of the body, additionally they contain anaesthetics (e.g. menthol, but there are others) to numb the throat and suppress the gag reflex.