Vaping is probably not completely harmless, but I do believe that it is much less harmful than smoking. I smoked an average of 1.5 packs a day for 30 years and tried every imaginable method of quitting without success. I switched to an Ecig in 2013 and smoked my last analog cigarette 3 days later. 9 months after that I was down to zero mg nicotine and three weeks later I could take it or leave it at will. I’ve been analog and Ecig free for over 2 years now and would recommend using Ecigs as a method of smoking cessation without hesitation.