Radon level is usually highest in the dawn when everyone slept deeply. In the middle of day, when children go to school and their
parents go to the work that no one in the house, Radon level is the lowest. And If you neglect ventilation even for a few days
during the winter time, Radon level can be as high as several times more than usual although radon levels are usually the lower
house. This is the main reason for measuring radon in real time. And when the high Radon level would be detected in your house by
Radon sensor, it is recommended to equip the facilities that can immediately mitigate the radon level.