e Cigarettes Safety Not Yet Proven CANSA The Cancer Association of South Africa CANSA The Cancer Association of South Africa E cigarettes may emit harmful substances, raising safety concerns Alert! e cigarettes may be as harmful as tobacco smoking, says study Nothing good comes from smoking , and vaping isn't a safe alternative. E cigarettes often contain nicotine and other harmful substances, and studies show that young people who vape are more likely to Why Are E Cigarettes Safer Than Cigarettes Vape Blog Vaping: Safer than cigarettes or a new health crisis?