Is Iqos Less Harmful Than Cigarettes La Fume Did you know that tobacco in IQOS is heated and not burned? Researchers say that heat not burn devices are only slightly less harmful to Sant. Pourquoi faut il gnralement tre jeun pour une prise de sang ? IQOS vs Vaping: Which Smoke Free Alternative Is Better? Is Iqos Less Harmful Than Cigarettes Perceived relative harm of heated tobacco products (IQOS), e cigarettes, and cigarettes among adults in Canada: Findings from the ITC Project