You can't see it or smell it, but it could be in your home and you wouldn't even know it.
It's a dangerous gas and it's called radon.
January is National Radon Action Month.
We've all heard we should get our homes tested, but how many of us actually do it?
KSFY News spoke with one homeowner who decided to take precautions for his family.
Homeowner Hercules Campbell doesn't have to fear radon in his home, he installed a mitigation system to rid his house of the health hazard.
"Knowing the background of illnesses involved with this and to get rid of that factor in our minds, and just for the peace of mind, decided to get it done," Campbell said.
Radon mitigator Mike Hartman said the first step is to take action.
"I would recommend anyone for to the local hardware store, pick up a radon test kit or call one of the local home inspectors to have radon tested in your house," Hartman said.
And that's exactly what Campbell decided to do.
"I purchased a test kit from the local hardware store. Did the test and had it analyzed. It was just a little bit high so we decided the best thing to do was to get that taken care of," Campbell said.
Campbell heard the talk about radon in the news. Radon is a leading factor of lung cancer in non-smokers so he worried about the effects it could have on his own family.
"It's a concern, especially if there's a large amount of radon in your house. it is radioactive and it could cause some illness. we're concerned about that because we have kids down here and we're down here too watching television and wanted to make sure it's safe.," Campbell said.
Hartman believes the cost of fixing your home for radon is relative to your health and safety.
"This is a reasonable price for the surety that you have versus down the road the possibility of lung cancer, this turns the house into a healthy home," Hartman said.
Radon is a leading factor in lung cancer for people who don't smoke.