Radon is a colorless, odorless, tasteless, and chemically inert radioactive gas. It is formed by the natural radioactive decay of uranium in rock, soil, and water. It can be found in all 50 states. Testing for it is the only way of telling how much is present.

The primary benefit is reducing the risk of developing lung cancer. Standard radon reduction systems are usually effective within 24 hours and maintain low levels as long as the fan is operating. Another potential benefit of these systems is reduced infiltration of moist soil air with the radon, which may reduce the humidity level in the basement of the home. Homeowners should consider correcting a radon problem before making final preparations to sell a home. This often provides more time to address the problem and find the most cost-effective solution. In addition, the current occupants--not just the buyer's occupants--will reap the benefit of reduced risk.

A radon mitigation system is any system or steps designed to reduce radon concentrations in the indoor air of a building.

The EPA recommends that you take action to reduce your home's indoor radon levels if your radon test result is 4 pCi/L or higher.