
“ELI5: Vegas “oxygen” bars??”
“Have you ever been in an apartment complex where someone who lives there uses oxygen and they have a big “NO SMOKING, OXYGEN IN USE” sign on the door? Yeah, had a college prof who said that most oxygen bars are a scam and that what you are breathing is mostly flavored air-otherwise they would need some sort of license, as pure oxygen is highly flammable and dangerous to store in public places. edit: wish I could remember the percentage he said but, he suggested that the next time you pass by an oxygen bar, ask someone working there what percentage oxygen is offered and if they don’t know, it’s likely homeopathic levels.”