Vaping is not good for your lungs. There is little actual study on whether it’s worse than smoking, especially in the long term.

I do agree that some vaporizer companies claim it is safe, and those companies are lying.

I don’t personally care if you choose to vape (except indoors in public spaces, or in highly congested outdoor places), and support legal cannabis, but you also probably should be careful about many of the claims of “safety” these products are making. There’s little evidence to suggest they’re safe, and no long term study at all. Anecdotes of the chemicals you are coating your lungs in are not particularly great, though.