Question 1

Where should I set up the Radon test device?

Accepted Answer

To get the most accurate results, your Radon test should be placed on the lowest level of your home that is regularly lived in, such as a basement or any space where people spend at least four hours each day. If your basement is unfinished and not used, placing the device on the main floor is perfectly acceptable. Avoid areas with unusual airflow, including kitchens, bathrooms, laundry rooms, near open windows or exterior doors, and storage spaces that are rarely occupied. For proper placement, position the device between 0.8 m and 2 m (3–6.5 feet) above the floor, at least 50 cm (20 inches) below the ceiling, and 20 cm (8 inches) away from nearby objects to allow for normal air movement. Ideally, place it near an interior wall, about 40 cm (16 inches) away, or at least 50 cm (20 inches) from an exterior wall. Depending on the type of device, you may need to hang or suspend it to ensure proper airflow around the detector.

Question 2

I’ve lived in my home for decades—do I still need to test for Radon?"

Accepted Answer

Yes. Radon-related health risks build up slowly over time. The danger comes from long-term exposure to elevated Radon levels, which can significantly increase the likelihood of developing lung cancer due to DNA damage. Even if you’ve lived in the same home your entire life without any noticeable signs or symptoms, Radon can still be present at harmful levels. Because Radon is completely undetectable without testing, it’s always wise to test proactively—long before a health issue ever arises—so you never face a preventable illness.

Question 3

My Radon levels are just below 200 Bq/m³ — is that considered safe?

Accepted Answer

There is no truly safe level of Radon, as any amount of exposure carries some level of risk. Health Canada recommends taking action at 200 Bq/m³, but even levels below that can still contribute to long-term health issues. In fact, for every 100 Bq/m³ increase in Radon, the risk of lung cancer rises by approximately 16%. Ultimately, it comes down to your personal comfort level and how much risk you’re willing to accept.

Question 4

My home is new, so it should have lower Radon levels than an older “leaky” house, right?"

Accepted Answer

Not necessarily. In fact, studies have shown that newer homes often have higher Radon levels than older ones. Modern construction focuses on energy efficiency, which means homes are built to be much more airtight—allowing Radon to accumulate more easily. Larger foundation footprints and variations in construction materials can also contribute to increased Radon levels in newer builds throughout the Okanagan. So, even a brand-new home is not guaranteed to have low Radon levels.

Question 5

What are the different ways to test for Radon?

Accepted Answer

There are several methods available to measure Radon levels in your home, and the best option depends on how quickly you need results. The most accurate and widely recommended approach is a long-term Radon test, using an alpha track detector. This small passive device is placed on the lowest lived-in level of your home for a minimum of 90 days up to one year, providing a reliable long-term average once it’s analyzed by a certified laboratory.

If you prefer faster insights, many homeowners choose a digital Radon monitor, which can provide preliminary readings within 24 hours and continue gathering data over time. These devices don’t require lab analysis and can be reset for ongoing monitoring.

For real estate transactions or situations where a shorter testing period is needed, a 96-hour test using a professional-grade continuous monitor can be completed. While this does not replace long-term testing, it helps determine the likelihood of elevated Radon levels and can support negotiations if mitigation may be needed during the heating season.

Question 6

What’s the difference between passive and digital Radon testing devices?

Accepted Answer

Passive Radon tests do not require electricity. These devices collect Radon or alpha particle traces over time, which are later analyzed by a certified laboratory. The most commonly used passive option in Canada is the alpha track detector, which comes as a small kit that includes lab analysis. It should be placed on the lowest lived-in level of your home for at least 90 days, after which it’s mailed to the lab, and results are sent back within a few weeks.
Digital (or active) Radon monitors, on the other hand, use built-in sensors to measure Radon levels in real time. Homeowners often prefer these devices because they provide quick readings, do not require shipping or lab fees, and can track long-term averages. They can also be reset and reused, making them convenient for continuous monitoring or for sharing with family and friends.

Question 7

Does testing in the summer give an accurate reading?

Accepted Answer

Summer testing often doesn’t provide a true picture of your home’s Radon levels. During warmer months, homes in the Okanagan typically have more airflow from open windows and doors, which can allow Radon to escape and lead to lower readings. In the winter, however, homes are sealed up and the stack effect pulls Radon inside more strongly, while reduced ventilation allows it to accumulate. Because of this, the heating season offers the most reliable conditions for testing and gives the most accurate indication of your home’s average Radon exposure.

Question 8

Is it possible to test for Radon on my own?

Accepted Answer

Yes, absolutely. Homeowners can easily perform their own Radon testing as long as they choose a 
C-NRPP-approved device and use a kit that includes professional lab analysis. It’s important to check that your test kit is not expired and has been stored correctly to ensure accurate results. If you prefer a digital monitor, make sure it’s from a reputable source — several models sold online have been recalled in recent years. For safety, always refer to the latest updates from Health Canada before purchasing a device.

Question 9

How frequently should Radon testing be done?

Accepted Answer

Health Canada advises homeowners to test for Radon every two years, even if a mitigation system has already been installed. Regular testing helps ensure your system continues to operate effectively over time. You should also retest if you’ve completed major renovations, foundation work, or added new sections to your home, as these changes can alter how Radon enters the building. Digital monitors are especially convenient in these situations, as they can be reset and used repeatedly for ongoing peace of mind.

Question 10

How do I return my radon test kit to the lab?

Accepted Answer

Once your test kit has been exposed for the minimum required 90-day testing period (with at least part of this time occurring during the ideal testing season of October–April to capture measurements during colder winter months), your detector is ready to be returned to the lab for analysis.Before mailing your detector back, please ensure you register your test device through Radonova My Pages. Registration allows Radonova to link your detector to your account and provide access to your test results once the analysis is complete. Instructions for registering your device are included on the commission sheet provided with your test kit.Your test kit is processed through Radonova Labs and includes a pre-addressed, pre-paid return envelope for convenient shipping within Canada.Return your radon detector for analysis to:Radonova, Ltd.Return for Analysis2555 Meadowpine Blvd., Unit 2Mississauga, ON L5N 6C3The new Canadian Return Hub eliminates the need to ship detectors across the border to the USA, making the return process faster and easier for Canadian customers.Please note that the included pre-paid return envelopes do not include tracking, as they are sent using standard postage for an oversize letter. If you would like confirmation of delivery, you may choose to send your detector using your own tracked shipping method.If you have questions about the status of your test kit once it has been returned to the lab, please contact Radonova customer service by clicking the button below.

Frequently asked questions