 For non-smokers like us, radon is the number one cause of lung cancer. You're kidding me, right? I have a smoke-free home and my family can still get cancer from radon? Yep. That's why the Surgeon General says every home should be tested for radon. But I don't smell any radon in my house. No, nobody can smell radon. It's odorless, colorless, and tasteless. It just comes up from underground and seeps into your house. Oh, great. No, no, hey, it's no big deal. Even if they find high levels of radon, it can easily be fixed.