Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London 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, An Overview of E Cigarette Impact on Reproductive Health Notes from the Field: Use of Electronic Cigarettes and Any Tobacco Product Among Middle and High School Students United States, 20112018 MMWR