Please view the following demonstration that simulates a fire in your home. The dramatic difference between a closed and open bedroom door during a home fire is higly evident. You may have less than 3 minutes to escape a home fire. A closed door can mean the difference bewtween life and death. Close Before You Doze!
https://www.youtube.com/watch?v=bSP03BE74WA&t=3
See these additonal links for other fire safety information.
https://www.dinwiddieva.us/935/Fire-Home-Safety