Frequently Asked Questions
QUESTION: Why do you warn home buyers that post-mitigation radon levels below about 2 picoCuries per liter are dangerous?
ANSWER: In a hot, humid climate, radon reduction to between two and three result in much less radon risk than levels over 4.0. To reduce radon to below 2-3 requires a much greater quantity of hot, humid outdoor air. The heating, cooling and humidification loads of over-ventilation stress the air conditioning system and can double or even triiple your air conditioning bills with little benefit from radon levels below about 2-3. INCREASED MOLD RISK Over-ventilation in a hot humid climate will often result in serious mold problems that are troublesome, difficult and expensive to cure and also provide health risk to susceptible individuals, especially children.