Quitting is suffering' The Spectator Australia Toxins produced by e cigarettes vary by flavor Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA) Hon Lik invented the e cigarette to quit smoking but now he's a dual user Vaping The Guardian Hon Lik invented the e cigarette to quit smoking but now he's a dual user Vaping The Guardian Vape Invented Year A Brief History of Vaping