[DannyTN]

"I don’t use them myself, but they are perfectly harmless to those around the users."

The FDA says no they are not harmless to those around. They are still putting chemical laden vapors into the air. They are thought to be less harmful than cigarettes but it's s different mix of chemicals.

[Jonty30]

You’re going to trust the FDA?

Do you also trust the EPA?

[tacticalogic]

The FDA says no they are not harmless to those around.

Did you just fall off of a turnip truck?

The FDA is a federal bureaucracy who's power, authority, and budget increases with the list if things they find that need to be regulated.

Never accept anything they say without seeing the evidence for yourself.

[DH]

“...They are still putting chemical laden vapors into the air...”

And..........your automobile doesn’t?