Humidity and radon a dehumidifier does not pull the gas out
Humidity comes from water: the slab, the walls, the dryer, the shower. Radon comes from the soil, wet or dry. A dehumidifier condenses water. It stirs a little air. It does not pull under the slab. Reading “no mould” as “radon is low” mixes two files.
Both are often handled in the same basement, with two different machines. Do not place the radon detector on the dehumidifier. Not an air purifier. Placement.
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.
Sources
