What is the most reliable way to test for radon?

Worried about invisible risks in your home?

The most reliable way to test for radon is by using a long-term radon test kit or a continuous digital radon monitor, as they measure levels over time and give a more accurate average.

Radon levels fluctuate daily due to weather, ventilation, and soil conditions. That’s why short-term tests (2–7 days) can give quick insights—but may not reflect true exposure. Long-term testing (90+ days) provides a clearer, more dependable result.

Here’s how to test effectively:

• Place the detector in the lowest lived-in area
• Keep windows and doors closed during testing
• Avoid kitchens, bathrooms, and drafts
• Follow manufacturer instructions carefully

For the highest accuracy, many homeowners combine both methods:
Start with a short-term test, then confirm with a long-term test or a digital monitor.

If results show elevated radon levels, consider professional testing or mitigation.

Quick Answer:
Long-term radon testing is the most reliable method because it captures real exposure over time.

Have you ever tested your home for radon?