Vaping: Understanding the Risks and Impacts on Health Why Isn't More Known About the Harmful Nature of Vaping? Pittman, Roberts & Welsh, PLLC Vaping exposes user to harmful levels of particulate matter, study suggests CUNY Graduate School of Public Health & Health Policy Some reports state that these new, flavored smoking devices are less harmful than tobacco cigarettes but how safe is vaping? In this third part of a four part series, China Daily examines the