Vaping Percentages UW CTRI UWMadison Association of electronic cigarette use and risk of COPD: a systematic review and meta analysis npj Primary Care Respiratory Medicine WHAT PARENTS NEED TO KNOW: We know that vaping is NOT a safer alternative to smoking, and by the time longevity studies on vaping come out, the damage on our teens' lungs Understanding the Hidden Health Risks of Vaping UL Research Institutes While vaping is not risk free, it is less harmful than tobacco Our World in Data