Is vaping itself harmful?

[mr_lebowski]

107. Bu ... bu ... bu ... it's still the dreaded CHEMICALS!!11!

Which are, to review:

1) Nicotine. Yes. Okay. It's toxic, but in much, much higher concentrations than what the person who is vaping and directly ingesting it, generally all damn day long ... consumes. Obviously, otherwise, they'd be dead in short order. Also important to note is that ALL 'second-hand vape' is coming at a bystander 'pre-filtered' by the lungs of the person who took the hit. Unlike a cigarette, which sits and burns the entire time, emitting unfiltered smoke.
2) Propylene Glycol - A water-soluble substance also used in asthma inhalers, and to purify the air in hospitals, and also used in dance-club 'fog machines' for many decades. It's LD-40 is quite high, you could consume a great deal of pure PG before it killed you, and it's only 0-30% of vape juice. In the concentrations we're talking about here, esp. for a 2nd hand 'vaper', it's completely innocuous.
3) Vegetable Glycerin. A water-soluble substance so safe that you literally can give yourself an enema with this stuff. It's used in 1000's of product we both ingest directly, and put onto our skin.
4) Tiny amounts of food grade flavorings. They are 'chemicals', yes, but there's really very little of them in the nic juice.


This is compared to 1000's of chemicals in cig smoke, including formaldehyde, carbon monoxide, a number of dangerous organic hydrocarbons ... along with particulates and oils (aka tar) that lodge in the lungs.

Here's the point: you may find it 'annoying' and 'not want to be around it', but I absolutely will be SHOCKED if any evidence is ever discovered that breathing '2nd hand vape' is actually harmful to bystanders.