All E Cigarettes Emit Harmful Chemicals, but Some Emit More Than Others Berkeley Lab Berkeley Lab News Center The Real Cost of Vaping Promo; Formaldehyde FOXSYLVANIA Vape companies talk about 'fresh' flavors, but these often come with a dose of formaldehyde. That's the stuff used in morgues or science labs to preserve specimens. You aren't a science project E cigarette vapor has cancer causing chemical formaldehyde CBS News