Radon concentration regulating method for room air, involves measuring concentration of radon or its decomposition product in living space, air system or in ventilation device, depending on change in ventilation intensity

摘要

The method involves pre-heating a supplying air that is fresh air in a heat recovering device with recovered humidity. Concentration of a radon or its decomposition product is measured in a living space, in an air system such as exhaust pipe, or in a ventilation device in an exhaust air stream. The concentration of the radon is measured depending on a change in the ventilation intensity.