First of all, in the event of a carbon monoxide alarm, evacuate yourself and your family and call emergency services once outside. Don't go back into the house until emergency responders have determined it is safe to do so. More information about responding to carbon monoxide alarms is available in the User Guide.

After a carbon monoxide event, the overall Indoor Air Quality (IAQ) may be less than ideal, resulting in poor IAQ readings. It may take some time for those readings to return to normal once CO levels have lowered.