LANSING, Mich. – As temperatures drop and heating systems are used, the Michigan Department of Licensing and Regulatory Affairs (LARA), Michigan Department of Health and Human Services (MDHHS), and Michigan State Police (MSP) are reminding residents of the dangers of carbon monoxide (CO) and urging them to take preventive steps to avoid CO poisoning in the home.
Governor Gretchen Whitmer has proclaimed November 2025 as Carbon Monoxide Safety and Awareness Month in Michigan to raise awareness and encourage safe practices during the colder months.
“As temperatures drop and Michiganders turn on their heat for the first time in months, they’re at risk for carbon monoxide poisoning,” said Governor Whitmer. “That’s why I’m declaring November Carbon Monoxide Safety and Awareness Month in Michigan. I urge all Michiganders to take proactive steps to protect themselves and their loved ones from this invisible and potentially deadly threat, including ensuring CO detectors and properly installed and working. Let’s all stay safe together.”
Fire officials are also urging caution, especially as home heating season begins.
“Symptoms of carbon monoxide poisoning include headache, fatigue, dizziness, nausea, confusion, and shortness of breath,” said State Fire Marshal Tom Hughes. “High levels of CO can be deadly within minutes. If your alarm sounds or you experience symptoms, go outside to fresh air immediately and call 911. If you don’t have a working CO alarm in your home, contact your local fire department or MI Prevention to receive one at no cost.”
Health leaders emphasize that CO exposure is difficult to detect — and even more dangerous for vulnerable groups.
“Carbon monoxide is a poisonous gas that you cannot see, taste, or smell – but it can be deadly when you breathe it in,” said Dr. Natasha Bagdasarian, chief medical executive. “It blocks your body’s ability to absorb oxygen and is produced by burning fuels such as gasoline, propane, wood, charcoal, and natural gas. The gas can build up to deadly levels within minutes in enclosed or poorly ventilated spaces. I urge families to have working carbon monoxide detectors in their homes to help prevent tragedies.”
Law enforcement is working closely with partner agencies to ensure first responders are trained and prepared.
“Carbon Monoxide can be deadly, that’s why it’s important to know the risks and be prepared to keep your family safe and warm this winter,” said Col. James F. Grady II, director of the MSP. “The Michigan State Police is proud to partner with other agencies to help ensure first responders get the training they need to recognize the dangers of exposure and properly treat those affected.”
Carbon Monoxide Poisoning Prevention Tips: Be Aware, Stay Prepared, Get to Fresh Air
Be Aware
- Have heating systems, water heaters, and all fuel-burning appliances professionally inspected annually to ensure proper operation and ventilation.
- Inspect fuel-burning vehicles yearly and repair any exhaust system leaks immediately.
- Never run a vehicle inside a garage or any enclosed or partially enclosed space—even with doors open.
- Never use outdoor fuel-burning equipment (e.g., grills, generators, or heaters) inside a home, tent, garage, or camper.
- Operate portable generators at least 20 feet away from enclosed structures. Use extra-long, grounded extension cords as needed.
Stay Prepared
- Install lithium battery-operated or hardwired CO detectors on every level of your home, especially near all sleeping areas, basements, and mechanical rooms.
- Test detectors monthly and replace them according to manufacturer instructions. Working CO detectors save lives.
- Knowing the symptoms of CO poisoning and acting fast—CO poisoning can feel like the flu, but ignoring symptoms can be fatal.
Get to Fresh Air
If you suspect CO poisoning or your alarm sounds:
- Immediately leave the enclosed or partially enclosed space.
- Call 911.
- Do not re-enter the area until it is cleared by the fire department, even if symptoms are not present.
Carbon Monoxide in Michigan: A Preventable Tragedy
In 2023, Michigan recorded 481 cases of unintentional CO poisoning, including 31 deaths, according to the 2023 Michigan Carbon Monoxide Surveillance Report. Data on emergency department visits and hospitalizations related to CO poisoning are available on the MI Tracking Data Portal.
MDHHS is also launching a year-long carbon monoxide awareness campaign under the theme: “Be Aware. Stay Prepared. Get to Fresh Air.” The campaign will highlight seasonal CO risks and provide educational materials, including fact sheets, videos, and social media content. Resources are available at Michigan.gov/CarbonMonoxide.
For more information about carbon monoxide safety, prevention, and resources, visit:
Together, we can reduce preventable tragedies and keep Michigan families safe.
###
