does the Yocan vape devices health or not?

[Yocan]

The vape pen health is a big matter.
One of Yocan fan ask does the Yocan vape devices health or not?
Here is his/her question:
Could you tell me what materials are used in the dry herb vape pen? Are any of the materials potentially carcinogenic? I am enjoying my vape pen but a well-meaning friend's son warned her against using them. Thanks for your help.

All of Yocan vape devices were passed RoHS test.
And none of our user feedback on health issue for years using.

Any more questions, please comment below.