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For years, I slept with my bedroom door wide open. My dog loved the freedom to pad in for midnight cuddles. I appreciated the gentle cross-breeze. And if my children called out in the night, I could hear them instantly. It felt cozy. Connected. Safe, even.Doors & Windows
Then I watched a fire safety demonstration that changed everything.
In a controlled experiment conducted by the UL Firefighter Safety Research Institute, two identical bedrooms were exposed to the same simulated house fire—one with the door open, the other securely closed.