Place the activated radon test device on a level surface, such as a table or shelf, at least two feet (approximately 60 cm) above the floor. Ensure it is not blocked by furniture or other objects that could impede airflow.
Step 4 · Place Test Device
Place the activated radon test device on a level surface, such as a table or shelf, at least two feet (approximately 60 cm) above the floor. Ensure it is not blocked by furniture or other objects that could impede airflow.