E cigarettes can emit formaldehyde at high levels under conditions that have been reported to be non averse to users Scientific Reports Une tude controverse met en cause la cigarette lectronique E cigarettes contain hazardous substances, addictive and harmful Formaldehyde exposure from 3 e cigarette formats tested well below WHO quality guidelines EurekAlert! New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Toxic Taxidermy The Real Cost