High Levels of Fruit flavored Chemicals in E cigarette Liquids How do vapes work and what chemicals are inside them? BTN High Don't Pollute Yourself The Real Cost What's hiding in that vape puff? Vapes might look clean or harmless on the outside, but inside the aerosol is a mix of chemicals and metals created when the liquid is heated. Massachusetts new vaping campaign done with student input masslive.com VapeAware St. Mary's County Health Department