Potassium nitrate: Flavored papers (particularly blunt wraps) often contain potassium nitrate, which is highly toxic
Until recently, though, its been difficult to achieve the goal of completely separating vaping from tobacco because all e-liquids used naturally extracted nicotine
In addition to filtering, MooseLabs filters optimize airflow so you get a consistent and enjoyable drag every time
formaldehyde A widely used and toxic chemical that manufacturers add to plastics, resins, some fertilizers, dyes, medicines and embalming fluids
Smoking and Health: Report of the Advisory Committee to the Surgeon General of the Public Health Service (US Department of Health, Education, and Welfare, Atlanta, 1964)