Cannabis vapes to hit P.E.I. shelves soon but officials warn of risks What Is an All in One Vape? Disposable Weed Pens The Plant Charges for THC Vape Pen, Dabs & Wax in Pittsburgh Worgul, Sarna & Ness, Criminal Defense Attorneys, LLC Toxic metal particles can be present in cannabis vapes even before the first use American Chemical Society While the new law restricts the sale of THC vapes, it does not make possession or personal use illegal.