A stopped radon fan the pipe alone is not the system
A mitigation system does not store protection. It pulls while it runs. A burned-out fan, a breaker that is off, a pipe disconnected in the attic: soil radon returns through the slab within hours, as the house finds its balance again. If the manometer or U-tube sits at zero while the fan is supposed to run, that is the failure, before any later health question.
Have the fan repaired. Do not replace it with a bathroom fan. After it is running again, a test in the same room confirms the number. After the system. Snow on the outlet. Electricity use: the fan’s draw.
The 4-day test gives a first reading. The 91-day test covers the three-month minimum Health Canada asks for. Both are $59 before tax: shipping, return and the laboratory are included, taxes extra. The PDF report is sent within 2 business days after the laboratory receives the detector.
Above 200 Bq/m³, mitigation is confirmed with a quote. Gaz Radon is C-NRPP certified for measurement and mitigation.
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