First of all, in the event of a smoke 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 smoke alarms is available in the User Guide.

After a smoke 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 the smoke clears.