Secondhand smoke and vapor are dangerous, at any level.

Take the Quiz: Find Out Where You’re At Risk

Learn What You Are Inhaling

Secondhand smoke exposure is the third-leading cause of preventable death in the U.S.1 Cigarette smoke contains more than 4,000 dangerous chemicals, including 69 that cause cancer. And the vapor emitted from e-cigarettes and other vaping devices contains cancer-causing agents, heavy metals and ultrafine particulates.2

Learn more about the toxic chemicals you could be inhaling when you’re around someone who is smoking or vaping.

Protect Coloradans from Secondhand Smoke and Vapor!

Want to know more about what you can do to help protect yourself, your loved ones, and your community from secondhand smoke and vapor? Click below to get started.

Stop Tobacco Use

Do you or someone you love smoke or vape? Find tools and resources to help you and your loved ones quit tobacco for good. 

1. Guingab-Cagmat J, Bauzo RM, Bruijnzeel AW, Wang KK, Gold MS, Kobeissy FH. Methods in tobacco abuse: proteomic changes following second-hand smoke exposure. Methods Mol Biol. 2012;829:329-48. doi: 10.1007/978-1-61779-458-2_22. PMID: 22231825.
2.  Colorado Tobacco Attitudes and Behaviors Survey, Cancer Prevention and Control Program, University of Colorado Cancer Center, 2018.
3. Harmful Chemicals in Tobacco Products, American Cancer Society, 2017. Retrieved from