In the event of a fire, a closed door can mean the difference between life and death. If access to the bedroom is tight, flames and toxic smoke can spread less quickly. As a result, the oxygen content is maintained and the temperature does not rise as much.
As the security institute reports, in recent years those affected have had an average of just three minutes to escape from a house fire. That is significantly less than about ten years ago. The reason for this is the increased use of plastics in house construction, but also in furniture and decorative items. The easily combustible materials ensure that a fire spreads faster. Closing the door is therefore a suitable strategy to protect yourself prophylactically in the event of a possible fire.