11/02/2026
Carbon monoxide (CO) poisoning is a serious safety risk.
In 2025, Wisconsin saw more than 400 emergency room visits related to carbon monoxide poisoning.
CO is an odorless, colorless gas that you cannot see, smell, or taste. Knowing the warning signs can help protect you and your loved ones.
• Know the symptoms: Headache, dizziness, nausea, weakness, confusion, and chest pain.
• Stay safe: Install carbon monoxide alarms and check them regularly.
If your CO alarm sounds or you experience symptoms of CO poisoning, get outside to fresh air immediately and call 911 from a safe location. Do not re-enter until emergency responders say it is safe.
For more information: https://www.dhs.wisconsin.gov/epht/co.htm