Testing your home for radon is one of the most important things you can do to protect your family’s health. The good news: it’s easy, affordable, and can be done without a professional. Here’s everything you need to know.
Why Testing Matters
Radon is invisible and odorless — the only way to know your home’s radon level is to test it. The EPA recommends that all homes be tested, regardless of location or construction type.
Types of Radon Tests
1. Short-Term Tests (2–90 days)
Short-term tests give you a quick snapshot of your radon levels. Common options include:
- Charcoal canisters — Placed in the home for 2–7 days, then mailed to a lab. Inexpensive and widely available.
- Alpha track detectors — Can be used for short or long-term testing.
2. Long-Term Tests (90+ days)
Long-term tests provide a more accurate picture of your home’s average radon level throughout the year. Alpha track detectors are the most common option.
3. Continuous Electronic Monitors
Electronic radon detectors provide real-time, ongoing readings without the need to send samples to a lab. They are the most convenient option for homeowners who want continuous peace of mind.
- Plug in and read the display instantly
- Track radon trends over days, weeks, and months
- Ideal for long-term home monitoring
Where to Place Your Radon Detector
- Test in the lowest livable area of your home (basement or first floor)
- Keep it away from drafts, windows, exterior walls, and HVAC vents
- Keep windows and doors closed during short-term testing for accurate results
When to Test
- When moving into a new home
- After major renovations or structural changes
- Every 2 years as a routine check
- After installing a radon mitigation system
What to Do With Your Results
If your radon level is 4 pCi/L or higher, contact a certified radon mitigation professional. Mitigation systems can reduce radon levels by up to 99% in most homes.
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