Working for a safer world

During a fire, closing the door, could have a potentially life-saving impact.

UL solves the safety, security and sustainability challenges of the 21st century. We empower trust and enable the safe adoption of innovation. Around the world, our employees share a common passion for our public mission to promote safe working and living environments for all people.

UL tests, inspects, audits, certifies, verifies claims, advises and trains as well as provides software solutions. Our public charity, Underwriters Laboratories Inc., conducts independent research, community outreach, standards development and safety education.

After over a decade of research conducted by the UL Firefighter Safety Research Institute (FSRI), proved that a simple behavioral change, closing the door, could have potentially life-saving impact during a fire. Spreading the home fire safety message, has become an essential part of advancing the UL mission, working for a safer world.

A striking visual comparison of natural and synthetic furnishings.

Why is the Close Your Door message so important now? Because fires have become more dangerous than ever.

Modern synthetic construction materials, home furnishings, and contemporary layouts allow fire to spread and become toxic much faster – like three-minutes-or-less-to-get-out faster.

But a closed door can slow the spread, reduce toxic smoke levels, improve oxygen levels and decrease temperatures dramatically – and that could make a life-saving difference in your home.

See for yourself what a closed door can do. The bedrooms in this video are side by side, adjacent to the burning living room.

A comparison of an open door bedroom and a closed door bedroom in a fire.

Fire Safety Pledge

4,264 people have pledged to close their bedroom door. Will you?