Actual CRM result of a home, it might lower than EPA recommendation (4.0) but still they decided to get a radon mitigation system installed.

 

 

When most homeowners hear about radon gas, they assume it's a problem only if the levels are high. So when a radon test comes back with a low reading—below the EPA action level of 4.0 pCi/L—it’s easy to breathe a sigh of relief and move on. This is so wrong!

But here’s the big question: If your home doesn’t currently have high radon levels, do you still need a radon mitigation system? The answer may surprise you—and it's more important than many realize. Let’s explore the risks, the science, and why even homes with “low” radon levels shouldn’t ignore this silent threat.

What Is Radon and Why Should You Care About It?

Radon is a naturally occurring radioactive gas that forms when uranium in soil, rock, and water breaks down. It enters homes through cracks in the foundation, crawl spaces, sump pumps, and even through well water. You can’t see, smell, or taste radon—and that’s what makes it so dangerous. According to the EPA, radon is the second leading cause of lung cancer in the United States, responsible for approximately 21,000 deaths each year.

Remember, radon isn't really the problem.. it's the decay what makes it dangerous! So, when you see “low” levels on your test, it doesn’t mean you’re completely in the clear or safe.

Understanding “Low” Radon Levels: Why It’s Not a Fixed Number nor A Safe Radon Level

Radon levels in your home fluctuate constantly. Factors like weather, ventilation, soil moisture, home renovations, and even how often windows are opened can influence the radon concentration in your living space. You might have a radon reading of 1.5 pCi/L today—but in the winter, during heavy rains, or after sealing your basement, that number could easily rise above the recommended action level.

In fact, the World Health Organization (WHO) recommends taking action when radon levels are at or above 2.7 pCi/L—which is lower than the EPA’s recommendation threshold! 

Zero (0) is still the best!

Should You Wait to Mitigate Until Radon Levels Are High?

These are actual results of homeowners who started with a 'low' radon level result from their initial testing. They did have a radon test retake after a few months and here is their result! 

 

Here’s the problem with the “wait and see” approach: Radon damage is cumulative. The longer you and your family are exposed—even at lower levels—the greater your long-term risk of developing lung cancer. Just like smoking one cigarette might not give you cancer today, consistent exposure to even moderate radon levels can add up over time. Is it reap what you sow? Why gamble with your health?

Benefits of Mitigating Low Radon Levels Early

This is an actual radon test kit from one of our dealers in Nebraska - Radon Defense Midwest! 

 

Prevention is always better than cure! Investing in a radon mitigation system before levels become dangerous offers several benefits:

1. Proactive Health Protection Move: A radon mitigation system ensures that radon stays at the lowest levels possible—protecting your family from long-term exposure, no matter the season or condition of your home.

2. Stable Indoor Air Quality: Radon mitigation systems often improve overall air circulation and can help reduce other indoor air pollutants, especially when combined with other Indoor Air Quality (IAQ) solutions.

3. Higher Home Resale Value: Homes with a professionally installed mitigation system are often more attractive to buyers and real estate listings nowadays. It’s one less concern during inspection and adds to your home’s long-term value. It's starting to become a requirement in other states actually!

4. Peace of Mind: Why worry about when or if radon levels will spike? With a mitigation system, you’re in control of your home’s safety—every day of the year.

When Should You Install a Radon Mitigation System?

     

 

Even if your radon test reads below 4.0 pCi/L, you should consider mitigation if:

• Your levels are between 1.0–3.9 pCi/L

• You’ve experienced foundation changes or renovations

• You plan to spend more time in the basement or lower levels

• You plan to work from home or do remote work

• You live in a high-risk radon zone (most states do!)

• You’ve never retested your home during different season

• You've started to experience radon poising symptoms

How Often Should You Test for Radon?

Even after a low initial reading, it’s essential to test your home every 2 years, or after major changes to your home’s structure. Radon test kits are inexpensive and widely available—but for the most accurate results, consider hiring a National Radon Defense radon professional. You can always get a free estimate, so no budget shockers here! 

Final Thoughts: Low Radon Level Results Doesn’t Mean No Risk!

Radon is a long game we've battling since. The key to protecting your home and family isn’t just reacting when levels are high—it’s about staying ahead of the risk. A low radon reading today doesn’t guarantee safety tomorrow. We've had met a lot of clients who were cancer patients, they tell their story, and it's always their biggest regret of not mitigating soon enough. Think of radon mitigation like smoke alarms: just because you haven’t had a fire doesn’t mean you shouldn’t be prepared.

So if your radon test shows low levels, it’s not a reason to relax—it’s a reason to make an informed decision. Talk to your local National Radon Defense dealer/radon professional about your options, and keep your family safe from the dangers of radon gas all year long!