VIDEO - It was his daughter’s nighttime habits that turned Joel Sellinger from a firefighter into an inventor.
"She'd fall asleep. I'd go shut her door. I'd wake up in the morning, and her door would be open because she had gone to the bathroom or gotten a drink of water," he said.
Keeping bedroom doors closed in your home when you go to sleep is critical in keeping your family safe. Sellinger, an Everett fireman, sees it all the time.
Twin 3-year-old girls survived an apartment fire earlier this year because their bedroom door was closed.
Sellinger was on the scene and took photos of the damage. One picture clearly shows the scorched, blackened outside of their bedroom door. The inside portion looks almost untouched.
"That's the proof right there," he said. "That closed door most likely saved their lives."