Radon is a Carcinogen meaning it is a substance capable of causing cancer in living tissue. As the Radon gas decays, its RDP’S or Radon Decay Products if inhaled readily deposit in the lung tissue where they irradiate sensitive cells in the airways, increasing the risk of cancer. Radon is an odorless, tasteless, and invisible gas produced by the decay of naturally occurring uranium in soil and ground water. It is the second leading cause of cancer after smoking. The EPA estimates that Radon is responsible for about 21,000 lung cancer deaths each year in the United States.