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Re:CDC says stop vaping as mystery lung condition spreads by davinic on Monday September 09, 2019 @01:32PM (#20920287)
Not necessarily. The first two substances have been vaporized extensively in the past as fog juice. Modern fog fluids use (IIRC) a mix of different glycol formulations, but glycerin is no longer used in any commercial products due to health concerns.

[Edit] I'll add that they were studied extensively in regards to actors and performers, and Actors' Equity defines many guidelines around usage and exposure: https://www.actorsequity.org/resources/Producers/safe-and-sa...

Re:CDC says stop vaping as mystery lung condition spreads by cptskippy on Monday September 09, 2019 @02:25PM (#20920850)
> No Actor may be staged or choreographed within a distance from a specific product’s release point during the “wait” time listed on the product’s Time and Distance guidelines chart.

In Laymen's terms it says "Don't let the actor stand around breathing that shit any longer than necessary for the scene".

To me, that's very different from "inhale this shit directly into your lungs repeatedly multiple times a day".