The problem isn’t vaping, but what you’re vaping and with what.

Cheap vapes you might get contaminants from the vape itself which are unhealthy. They get very hot, and quality control on these things is abysmal.

The second problem is the actual liquid. What goes into these with all the flavor crap isn’t regulated well and sometimes chemicals are being added that are harmful to us and cause problems, sometimes faster and worse than smoking cigarettes would have.

Now, if you have a good vape, and a proper vape liquid (probably neutral, no additives), it will be safer than regular cigarettes.