Your home is filled with radon gas.  The only question is; “how high are the levels“?

What is radon gas? 

Radon is a radioactive gas that originates from decaying uranium in the soil. In many homes, it is drawn into the indoor air from the ground, where it can build up. Radon gas is invisible and odorless. It kills more people each year than drunk driving, drownings, and home fires combined. As the second leading cause of lung cancer, radon has more victims than asbestos.