Devices capable of measuring indoor air pollution have been drawing more attention as concerns about air pollution grow. However, cumbersome charging and small displays make users uncomfortable. To solve this problem, COBALT Inc. developed a wall clock-type air pollution monitor, Oracle. Oracle Indoor air pollution monitor is equipped with ventilation warning function and provides air pollution information (PM1.0, PM2.5, PM10, VOCs, CO2), temperature, humidity, as well as telling the time. It lets users check current time and air pollution at a glance. Also, the elegant design fits into any interior.