Scientific evidence proves vapes are less harmful than cigarettes 24SHARE Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis Are e cigarettes less harmful than smoking? Our blog post has the answer to this, and other common questions about vaping. 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 Most smokers wrongly believe vaping is at least as harmful as smoking UCL News UCL University College London