It’s like the bad wig effect: You only notice the vapes that do smell. I was very surprised to find that a coworker was secretly vaping at his desk. He’d been

It’s like the bad wig effect: You only notice the vapes that do smell. I was very surprised to find that a coworker was secretly vaping at his desk. He’d been doing it for weeks before I saw him take a puff. Nobody noticed any smell. If the vape juice is unscented, the only aerosolized compound should be propylene glycol– the same substance used in fog machines.