Choosing a room to perform the radon test
Health Canada recommends that the device be placed on the lowest level room in the house that is occupied for more than 4 hours per day by a family member.
The preferred locations for the installation of the dosimeter are the living room, bedroom, and playroom. The ideal location is a bedroom on the lower level of the house.
Areas to avoid are the kitchen, laundry room, bathroom, closets, crawl space and furnace room.