E Cigarettes: Know the Health Risks Department of Health Study Finds E Cigs Produce More Formaldehyde Than Regular Cigarettes All E Cigarettes Emit Harmful Chemicals, but Some Emit More Than Others Berkeley Lab Berkeley Lab News Center Cigarette lectronique : des produits cancrignes seraient inhals par les consommateurs La cigarette lectronique rduit drastiquement l'exposition aux toxiques du tabac Observatoire de la prvention de l'Institut de Cardiologie de Montral Electronic cigarettes drastically reduce exposure to toxic substances from tobacco Prevention Observatory of the Montreal Heart Institute