The Truths Behind Vaping: Information for Youth and Teens USU Chemicals in e Cigarettes: Are They Harmful? The FDA doesn't know if flavored vaping chemicals are safe to breathe Salon.com E cigarettes aren't just risky for users. They can harm the people around them too. From accidental poisonings to fires and explosions, the unintended consequences are real. Between 20102023, Texas reported 3,394 poison Thousands of Unknown Chemicals Found in E Cigarettes Respiratory Therapy