There is no safe level of exposure to secondhand smoke and vapor.

Secondhand smoke exposure is the third leading cause of preventable death in the U.S.1 And when children or adults are exposed for any length of time, it can have a negative effect on their health.

Learn about the dangers of secondhand smoke and vapor, and how you can protect yourself, your family and your neighbors.

Click on a button below or scroll to learn more

See Where You Are at Risk

Did you know that most exposure to secondhand smoke and vapor occurs in homes and outdoor workplaces? You can also be exposed in outdoor public places and also in cars.

No matter where you’re exposed, one thing is always true: secondhand smoke and vapor can cause serious health issues and no level of exposure is safe.

Tap to see where you may be at risk.

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Your Home

If you live in an apartment complex or condo without a smoke-free policy, you can be exposed to dangerous chemicals and toxins.
Secondhand smoke or vapor can seep in through air ventilation systems and cracks in walls and you may be exposed in common areas or near entrances. No level of exposure is safe. Click below to learn what you can do to protect yourself and others.

Learn More

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The Workplace

two men working on a roof near solar panels

You should not have to choose between your job and your health. Yet, like many Coloradans, you may be required to work in areas that allow smoking or vaping, and that puts you at risk of negative health outcomes.
If your coworkers take breaks to smoke or vape, or if customers are smoking or vaping near your worksite, you are exposed to the same harmful chemicals that cause serious health issues.

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Restaurant Patios

Seven out of 10 Coloradans say they would prefer smoke-free patios.2 However, smoking and vaping on patios is allowed in many communities and it puts you at risk for secondhand exposure.
Is there a policy in your community to protect you from exposure to secondhand smoke and vapor when you’re at a restaurant? Click below to find out.

See Your Local Policy

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Popular Pedestrian Areas

The 16th Street Mall in Downtown Denver is shown midday. Learn more about vaping and tobacco use in Colorado.

Smoking and vaping are common in open-air malls and shopping districts without smoke-free policies. Be aware of people smoking and vaping around you. Remember, to completely avoid exposure, the source of smoke must be 25 feet or more away.

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Public Transit

bench in front of a cement wall

In many communities across Colorado, people may smoke or vape while waiting at public transportation stops. Even though many vaping devices are small and can be easily concealed, they all produce a dangerous chemical cloud when the user exhales.
Breathing those chemicals isn’t safe. Move away if you’re able. Click below to report smoking violations to protect yourself and others.

Report a Violation

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park with large leafy trees and sunlight coming through

Being outdoors does not fully protect you from secondhand smoke and vapor. When someone smokes or vapes within 25 feet of you (less than two car lengths away), you can inhale harmful chemicals that can cause serious health issues.
If you have children or pets with you, they are at risk as well.

Now you know!

Thanks for learning about all the common places where you’re more likely to be exposed to secondhand smoke and vape.

That’s an important first step to keeping yourself safe. Keep going. Scroll to learn more about what you’re inhaling.

Learn What You Are Inhaling

Cigarette smoke contains over 4,000 harmful chemicals, including 69 that cause cancer. And the vapor emitted from e-cigarettes is NOT harmless “water vapor” but in fact contains cancer-causing agents, heavy metals and ultrafine particulates3.

Learn more about what you could be inhaling when around someone who is smoking or vaping. There is no safe level of exposure to secondhand smoke or vapor.

One step closer…

…to protecting yourself and those around you from the chemicals found in secondhand smoke and vapor.

See how you can take the next step.

Take a Step Today

We all want healthy communities where we and our loved ones can thrive. There are steps you can take to protect yourself and others from exposure to secondhand smoke and vapor. 

Keep your home and car smoke- and vapor-free.

Set a rule for guests and family members to refrain from smoking and vaping while they are in your home and car to avoid harm to others and damage to surfaces. 

Consult your property manager.

Anyone living in multi-unit housing — including apartments, condos and some subsidized housing — can be exposed to smoke and vapor in the air that is shared between units. In addition, smoking and vaping are prohibited in the common areas of public and private condos and residences, but you may still be exposed in these areas. If you detect secondhand smoke or vapor in common areas, through vents or in hallways, talk to the property manager about their smoke-free policy and how it can be enforced or encourage them to enact one. Learn more here.  

Let a store manager know…

…if smoking or vaping is occurring near the entrance and putting others at risk. 

Talk to your employer.

If smoking and vaping are occurring at your workplace or in common areas, ask that the company’s tobacco-free workplace policy and ensure it is being enforced. While the Colorado Clean Indoor Air Act prohibits smoking at most businesses, some places of employment — including most outdoor job sites — are not included. This means you, fellow employees and others are not protected from dangerous secondhand smoke and vapor. Learn more here

Report a violation in your community.

If you experience repeated exposure to secondhand smoke or vapor in a smoke-free environment – whether this is your workplace, a public space, or your home with shared walls, report the violation here and it will be shared with your local public health agency. 

Get help for you or a loved one to quit smoking.

Whether you are just thinking about quitting, quitting again, or looking to support a friend as they take the first step, the QuitLine can help. Support is free, nonjudgmental and confidential. Visit or call 1-800 QUIT NOW to start today. Specialized support is also available for pregnant people and youth seeking help for tobacco or vape use. 

Move away.

To completely avoid exposure to secondhand smoke outdoors, you need to move 25 feet away from the person smoking or vaping. Distance yourself to ensure you are not at risk. 

Ask someone to stop or move to a safer distance.

If someone is smoking or vaping near you and making you uncomfortable, politely ask them to move away from you and others.

Take this pledge today

Do You Know the Policy in Your Community?

Smoke-free community policies are proven to protect people from harmful secondhand smoke exposure, help people quit smoking successfully and prevent young people from starting to smoke.

See if your community meets the highest standards in smoke-free policies to keep you, your family and neighbors safe.

See the Policy in Your Community


If your community is not on this map, consider reaching out to your local public health agency through the form below, to see how you can help change that!

Get Involved Locally

Do you want to help introduce or advance smoke-free policies in your community? Share your contact information below and we’ll help you connect with a smoke-free coalition in your area.

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Tweet Your Support

Help us protect others by sharing information on secondhand smoke and vapor with others in your circle. Share these resources with your friends and family.

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Watch the TV Spots

Secondhand smoke is the third leading cause of preventable death in this country, killing 41,000 nonsmokers each year.

See how exposure to secondhand smoke and vapor can be harmful to those nearby. 

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