Vaping: How popular are e cigarettes? There's some confusion and misleading information about vaping, which can make it difficult to work out what's true or not. Nicotine vaping is substantially less harmful than smoking. It's also one of HOW DOES A VAPE DEVICE WORK? 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