Radon is a radioactive gas ,it is the odorless invisible radioactive gas that comes fromuranium being broken down in rocks and soil,Many studies has show you THAT RADON IS THESECOND LEADING CAUSE of lung cancer, behind smoking.

The only way to know if your home has a radon problem is to test. Every home should have a radon detector. The EPA recommends that average annual indoor radon levels do not exceed 4.0 pCi/L (150 Bq/m3)，.For perspective, 4.0 PK liters of radon is equal to 8 cigarettes per day,

The International Agency for Research on Cancer (IARC) classified radon as a proven human carcinogen along with tobacco smoke, asbestos and benzeneBelow, you can find links to learn more about radon