A new study published in Nicotine & Tobacco Research found that those using e cigarettes alone were more than twice as likely to develop COPD than people who didn't use any tobacco products, Notes from the Field: Use of Electronic Cigarettes and Any Tobacco Product Among Middle and High School Students United States, 20112018 MMWR Vaping Around Children Exposes Less Nicotine Than Smoking Ecigator While vaping is not risk free, it is less harmful than tobacco Our World in Data