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Place Test Vials and Remove Caps — Place Test Device

Beginner7 mins

Part of project

Radon Testing · Step 4 of 10

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On your chosen surface, place both radon gas detector test vials about 6 inches apart. Carefully remove the caps from each of the test vials. This exposes the charcoal inside, allowing it to begin absorbing radon gas from the air. Ensure the vials remain upright and stable.

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FAQs

How long does a typical DIY radon test take, and what's the estimated cost?

A short-term DIY radon test typically takes 2-7 days to complete, as indicated by the project's estimated time. The cost for a single test kit can range from $15-$50, depending on the brand and type of kit purchased, not including postage for mailing it back to the lab.

What are "closed-house conditions" and why are they important for accurate radon testing?

Closed-house conditions mean keeping all windows and outside doors closed for at least 12 hours before and during the entire testing period, except for normal entry and exit. This is crucial because ventilation can dilute radon levels, leading to an artificially low and inaccurate reading of your home's average radon concentration.

Where is the best place to position the radon test device in my home?

Place the test device in the lowest lived-in level of your home, such as a basement or first-floor bedroom, away from drafts, direct sunlight, and high heat or humidity. Avoid placing it in bathrooms, kitchens, laundry rooms, or closets, and keep it at least 20 inches above the floor.

What should I do if I accidentally disturb the test kit or open windows during the testing period?

If you accidentally disturb the kit or open windows for an extended period, it's best to restart the test with a new kit to ensure accurate results. Maintaining consistent closed-house conditions is vital for a reliable radon reading, as disturbances can skew the outcome and compromise the validity of your test.