The 95% statistic is based on qualitative opinions. We can't quantify and say e-cigarettes are 95% less harmful than combustible tobacco. I caution against using that number and widely circulating it. We know e-cigarettes are less harmful, and Heart and Stroke believes that, but we don't know how much less harmful, and we won't know for some time. It will take decades for us to figure out what this means for long-term health consequences. We do know that nicotine is detrimental to youth development. We need to keep it out of the hands of young people. That's why marketing needs to be restricted.
On February 12th, 2018. See this statement in context.