Open VS Closed Door Decibels

As part of the Close Before You Doze outreach initiative, Steve Kerber, the Director of the UL Firefighter Safety Research Institute took measurements with a sound level meter and recorded the difference between the loudness of a smoke detector with and without an average interior home door in between. Here is how these tests were made.

For more information about how a closed door at night can help keep you safe in the event of a house fire and to take the pledge to 'Close Before You Doze', visit closebeforeyoudoze.org.

Visit ulfirefightersafety.org to learn more about how the UL Firefighter Safety Research Institute is committed to increasing firefighter knowledge to reduce injuries and deaths in the fire service and in the communities they serve.