It was nine years ago to the day that a Rochester mother lost her daughter to carbon monoxide poisoning, and she's now using social media to urge everyone to honor Hannah in a simple way.
Even though it's a law, not everyone in Minnesota has a carbon monoxide detector in their home. On Tuesday, Melissa Griggs asked her fellow citizens to honor her daughter's memory by protecting themselves.
Griggs has vowed to continue passionately spreading awareness until everyone has a detector in their home.
"This is the first of seven detectors that we have in the house," she explained to FOX 9 News.
In fact, there's not a room in their home without one because the Griggs family never wants to suffer another loss to a silent, scentless killer.
"I have a lot of great memories of Hannah, but it was really traumatic and we get to relive it every year," she said.
Hannah Griggs was 3 years old when she died of carbon monoxide poisoning. At the time, the Griggs had no detectors in their home.
"It's hard every day -- still hard every day," Griggs said.
The Griggs pushed for and helped pass Hannah's Law, which requires carbon monoxide detectors within 10 feet of every bedroom. Now, she is taking to Facebook to continue her push for education and compliance.
"Today, in memory of Hannah, please take a moment to ensure you have the proper amount of carbon monoxide detectors in your home and they are not expired," she wrote.
Since the Griggs' crusade to get Hannah's Law on the books, the family knows they have made a difference -- and that helps.
"I know personally that people have been saved by the mandate," she said. "I know the same family twice has had theirs go off. I just know that every day, we're helping people."
Even so, Griggs said she knows some won't get a detector -- and she has a warning for them.
"It will happen to you, or it will happen to your neighbor, or it will happen to a family member," she said. "Believe me; you don't want to be that person."
Griggs said her efforts to educate are just getting started because there's still a lot of work to be done. She's now looking into working with a public relations company to help get the word out and coordinate fundraisers to provide detectors to those who cannot afford them.