About Radon 101

Radon 101 exists for one reason: radon is one of the most common and most fixable home health hazards in North America, and most homeowners still find the topic confusing. The official information is excellent but scattered across government PDFs, and the rest of the internet is mostly companies trying to sell you something. We sit in the middle and translate.

What we do

We take the guidance from the agencies that actually set the standards and turn it into clear, practical articles: what radon is, how to test for it, what your number means, how mitigation works, what it costs, and what to do when you are buying or selling a home. Every article aims to answer the question you searched and then tell you the specific next step.

Who we rely on

We are not a lab and we are not a mitigation contractor. When it comes to the facts, we follow and cite the authorities: the U.S. Environmental Protection Agency, Health Canada, the World Health Organization, the U.S. Surgeon General, and the radon-professional bodies that certify testers and mitigators (AARST-NRPP in the United States and C-NRPP in Canada), along with state and provincial radon programs. Where the experts disagree or the science is still developing, we say so.

How we stay independent

Radon 101 is reader-supported. Some of our links are affiliate links, including the Amazon Associates program, which means we may earn a small commission if you buy a test kit or product we recommend, at no extra cost to you. That never changes what we recommend. We point to the test kits and tools we would use in our own home, and we always note the free and low-cost options, including state and provincial programs, first.

An important note

This site is educational. It is not medical advice, and it is not a substitute for a professional radon measurement or a certified mitigation system. For decisions about your specific home and health, test your home and talk to a certified radon professional and your doctor.