DRY HERB VAPORIZER VS VAPE PEN - AN OVERVIEW

Did these persons that allegedly experienced ruined lungs also use various vaping items? Did these vapes originate from the street by way of a Mate that statements these vapes ended up from dispensaries in Cali? Or were they really legit cannabis vapes? Would not want that professor as my teacher with such a piss-inadequate review.The Arizer Solo I