Let me give you an example of Harm Reduction. I was a tobacco cigarette smoker for 22 years. Nicotine vaping stopped this nasty habit 10 years ago. If it wasn't for this amazing technology, I won't be writing this right now. For my e-juices to = 400 cigarettes (20 packs of cigarettes) worth of nicotine or averaging 4800mg of nicotine (12mg per cigarette worth of nicotine), I would need to vape 800 mls of e-juice in 20 days. This takes me 7 months. To = 1 pack of cigarettes worth of nicotine I need to vape 40 mls or 8 days of me vaping.  When I was a smoker 400 cigarettes would take me 20 days to smoke. Each cigarette is made with 600 ingredients.  While my e-juices have 4 ingredients. This is 147,140 chemicals per pack of cigarettes not going into my body when burnt.  2,942,800 chemicals over 400 cigarettes when burnt. The average nicotine vape has under 5% of these chemicals. The cancer risks of a .5% of the chemicals which most can't be distinguished from the air we currently breathe in having more cancer risks. My Ejuices have 0.6% of the ingredients of a cigarette. I would need to vape 8018 mls of e-juice 70 months or almost 6 years of vaping to = 20 packs of tobacco cigarettes of chemicals. This is the very definition of harm reduction. The reason I chose 400 cigarettes as my starting point just easier math and to have big enough numbers to show help you understand what harm reduction is.