The American National Institute for Occupational Health and Safety at Work has analyzed the quality of the air of a popular vape shop with corner juice bar and lounge area.
The presence of vapor-related chemicals such as diacetyl, acetyl propionyl, acetaldehyde, formaldehyde and nicotine has been analyzed.
The relative report shows that the levels of flavouring compounds that may be related to respiratory problems are well below the safety limits, often so low that they can not be quantified.
The formaldehyde level in 2 of the 8 samples is equal to half of the recommended exposure level; in other samples it is to a lesser extent or even unrecognizable.
The concentration of nicotine is at the lowest detectable levels.
Briefly … no dangerous exposure for the workers, and the numerous vapers!