First and foremost, stay calm. As mentioned previously most situations resulting in activation of a carbon monoxide detector are not life-threatening and do not require calling 911.
Determining an Emergency
To determine the need to call 911, ask the following question of everyone in the household:
- “Does anyone feel ill?
- "Is anyone experiencing the ‘flu-like’ symptoms of a headache, nausea or dizziness?”
If the answer to the above by anyone in the household is true, evacuate the household to a safe location and have someone call 911.