Don't ignore symptoms, especially if more than one person is feeling them. If you think you are suffering from carbon monoxide (CO) poisoning, you should
- Get fresh air immediately. Open doors and windows. Turn off combustion appliances and leave the house.
- Call 911 or go to an emergency room. Be sure to tell the EMT or physician that you suspect CO poisoning.
Be prepared to answer the following questions: Is anyone else in your household complaining of similar symptoms? Did everyone's symptoms appear about the same time? Are you using any fuel-burning appliances in the home? Has anyone inspected your appliances lately? Are you certain they are working properly?