Test your home for radon - it's easy and inexpensive.
Fix your home if your radon level is 4 picocuries per liter (pCi/l) or higher.
Radon levels less than 4 pCi/l still pose a risk, and in many cases may be reduced.
Passive test devices
Alpha track detectors
Continuous radon monitors
Working level monitors
For more detailed information on testing devices,
For more detailed information on percentage removal efficiencies of different systems,
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