The Rodent Electronic Nicotine Delivery System: Apparatus for Voluntary Nose Only E Cigarette Aerosol Inhalation bioRxiv E cigarette aerosol can contain harmful ingredients, including nicotine, heavy metals, and small particles that can be inhaled deep into the lungs. Learn more at www.CDC.gov e cigarettes. CDC The Impact of E Cigarettes and Asthma: What You Need to Know News Release: New study finds Minnesota youth with asthma are more likely to vape About E Cigarettes (Vapes) Smoking and Tobacco Use CDC E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA