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If your home tests high for radon, the first step is to install a mitigation system. These systems can reduce radon levels by up to 99%, and the EPA recommends that homes with a radon level of four or higher install a mitigation system. These systems usually consist of PVC pipe connected to a specially-designed fan and venting the air outside through the roof.
What you should know about Radon mitigation?
Radon mitigation techniques come in two main forms: passive and active. Both types reduce radon levels in your home. Choosing the right mitigation system for your home will depend on its layout and design. Passive systems use a special filtering system to filter out radon before it reaches your living areas.
Passive radon mitigation systems are not as effective as active ones, and they should only be installed by a radon expert. The installation of passive mitigation systems should be part of new construction or renovation. Passive systems won’t move radon out of the house and are not effective for homes with high levels of radon.
Lifetime Radon Mitigation is a naturally occurring radioactive gas that seeps into your home from the ground. Exposure to elevated levels of radon can cause lung cancer over time. It is the second leading cause of lung cancer in the United States, behind only smoking.Source : http://www.lifetimeradon.com